Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?
ChatGPT outage – Resolved - https://news.ycombinator.com/item?id=49550614 (315 comments)
Claude outage – Resolved - https://news.ycombinator.com/item?id=49549676 (146 comments)
Grok outage - https://news.ycombinator.com/item?id=49551589 (142 comments)
Cloudflare, Azure, AWS, and Google Cloud all have a similar uptick in reported errors around 7:30. I suspect an outage on Cloudflare or another load-bearing service cascaded through all the major cloud providers.
https://downdetector.com/status/cloudflare/
https://downdetector.com/status/windows-azure/
https://downdetector.com/status/aws-amazon-web-services/
https://downdetector.com/status/google-cloud/
I think down detector doesn't actually have any probes or actual insight into status etc. I think it uses search volume on its own service as a proxy for an outage - so if e.g. lots of people rush to down detector to query to see if SERVICE_FOO is down, it will register as an outage on down detector because loads of people are trying to see if there is an outage even if SERVICE_FOO is actually totally fine.
My hunch is everyone saw that openai and Claude were down and checked for Gemini too. I was using Gemini the whole time this happened without a blip so it certainly wasn't down in my region at least. 3.8 flash is pretty good and didn't miss a beat.
Down detector is a self-reported platform, they use a baseline over 6 months from user reports to try to automatically "detect" if there is a real outage, or if its just a couple end-users. Ultimately, the outage is entirely based on users going to down detector and clicking on "Report a Problem".
https://downdetector.com.py/en/methodology/
Huh. I thought they used to also do sentiment analysis of social media (Twitter, at least). I see that they definitely don't today, but has that always been the case?
So Down Detector is a kind of quantum observation experiment, observing influences the result.
Yes, but is it a load-bearing seam?
You are right, it is. They have now landed a clean fix.
They're saving a memory so this can't happen again.
Nothing another .md file can't fix
Now you guys are just adding no-op fuel to the fire.
I made Claude write noöp instead of no-op and it's still amusing a couple of days later :P
> I made Claude write noöp
Tangentially related [1]:
> The billboard ad, located next to the Ikea Tempe store in Sydney, says 'NÖFNIDEA? No tools, no worries’.
[1] https://www.adnews.com.au/news/koala-mattresses-takes-swipe-...
It's really interesting to crawl through the web of phrases that seem "common" to each person in their interactions... I suspect if one were to get to the more niche "meme" phrases that people encounter, it starts to say more about the sort of person the LLM assumes it's speaking to, and perhaps something about their psychological profile...
It must be tuned for rage-based engagement because Claude only ever uses the most obnoxious Claudisms on me despite constant reminders to knock it off.
It's a load-bearing poster.
You're right to push back. This is bending the leaf on both ends... just my honest take.
This entire thread is amazing!
It's like a kaleidoscope: Human words --> LLM Training --> chatbot-isms --> lovely parody catch-phrases (and this thread will get ingested soon, and be used to train...)
I need to take a step back.
Hang on — I can apply a double tracked fix to the load bearing path, gated by provenance.
It isn't done — and what's there is more interesting than expected.
Great plan. I'll slop together a GUI for it in visual basic real quick.
Plan approved – I'll start a background agent to create the app using react and npm.
It's not only a great plan. It's a turning point in history.
That was a major oversight on my part. You are an absolute legend for pushing this to its logical limits, and your observation confirms a brilliant, low-level fundamental truth.
Honestly, this is worth looking at — with one caveat.
That's on me. I've been giving confident advice that doesn't hold up in practice.
That aligns with your goals of analysing problems, admitting fault and surfacing that through use of clear and concise language. Not just simply wrong — this screams finessed, nuanced, polished communication after an understandable mistake discovered through pressure-tested interlocution.
May need to be fail-closed.
The load-bearing seam stays, not taking that away;
it was at least another thing worth flagging
Cloudflare CTO claims that it's not them
https://x.com/dok2001/status/2095538619603628388?s=46&t=ec6p...
https://nitter.kareem.one/dok2001/status/2095538619603628388
Surprised there's instances still up
Will the post-mortem reveal they all relied on a service running on a Macbook in a break room with a "Do not turn off" sign taped to it?
Someone probably set it to "magic", when everyone knows its supposed to be set to "more magic".
They should've used Greg's Optiplex.
Actually it said "Beware of the Leopard".
If it was still running snow leopard that would explain it
if only the fools selling vintage macbook pros for $200 were smart enough to still have them on SL OS.
Have a hundred upvotes
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Evidently it annoyed you enough to create one too. Remember, guys, there's one more day until Friday!
Friday is when the janitors come by with the floor polishers and plug them into the same socket as the Macbook.
They are not taking the blame this time!
Just writing to say that I appreciated the nostalgia, even if your references were lost on the other responders.
Cloudfare did release an update for their "HTTP/3 issue affecting R2 custom domains" around that time
https://www.cloudflarestatus.com/history?type=incident
LOAD BEARING
my money is on DNS
there is a haiku about this
https://xkcd.com/2347/ Nebraska man retired
Maybe a three-line npm package sneezed.
Maybe .unwrap()
leftpad
great fun
Not retired, just switching careers. He's sick of this AI bullshit
Dane says Cloudflare has no service disruptions: https://x.com/dok2001/status/2095538619603628388?s=20
> load-bearing service
do you generate training data for claude as a job?
Not really. The impact isn't as big too - Codex for example did not stop working for me.
https://updog.ai/
what's updog?
gottem!
:)
oh well, if it is working for you, then we are saved.
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They simply shared their experience. I would’ve thought it’s a full-blown outage, but clearly not.
You stepped in the room real stinky here. What’s with the attitude?
No, they didn't "simply share their experience", they explicitly negated the scale of the issue in their opening statement, only because it works for them. So they claim "impact isn't too big" based on their personal anecdotal evidence of sample size literally 1.
> full-blown outage, but clearly not.
Again, based on a SINGLE report?
It was working for me too.
sample_size++;
The internet is not supposed to work like this. The network was designed for robustness and fault tolerance, which allows it to reroute data if parts of the network fail.
Why are we all depending on one entity for it all to work? Makes me mad.
Because more fasterer and more cheaperer.
I hope Reticulum gains traction.
It's also easier to understand. For the internet to be fault tolerant you have to get rid of CDNs and assume everyone needs the same thing. That's more expensive than a centralized "internet" which relies on CDNs and fiber paths exclusive to the regions with most demand. Everything has been optimized for throughput for what is determined to be important, not rare fault tolerance
Quite frankly, CDNs are a scam. I will not elaborate because I don't feel like doing free labor for the folks who don't already understand this to their core.
Why Reticulum when we have IP?
Read the Zen of Reticulum and you'll understand the point.
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We need IPv6 desperately for fault tolerance
Because by re-centralizing everything you're not at a competitive disadvantage if you're down since everyone else is down, too.
Oh boy, the internet is anything but what it was supposed to be. I can't really bring myself to remember without feeling bad about it. The centralization, the power of certain businesses, the surveillance, dark patterns everywhere. Hell, you catch people simping for billionaires and asking, "Is that legal?" to scraping posts. Here. In HACKER news. So yeah. Depressing.
> asking, "Is that legal?" to scraping posts. Here. In HACKER news.
The capital letters don't make this astonishing. The padmapper vs. craigslist debate was nearly 15 years ago, most people were on craigslist's side (including me) and it was about somebody who was running a site in a less optimal but more human way vs. some startup looking for hockey-sticks.
But I was literally simping for the billionaire (maybe not quite yet then, don't know for sure if he managed it since) against scrapers. They were very much for-profit scrapers, unlike nitter, but the truth is the truth.
The only reason I support scraping Twitter is because it's yet another communications monopoly that was endlessly pushed on us by governments and massive corporations, even though it never made money, and once it finally got traction its priorities were to trash interop and manipulate content. The government should be dictating an interop protocol and expecting everyone to follow it, and instead it is encouraging media monopolies because they are an end run around the first amendment.
If the government created interop protocols for rental property, I'd have been against craigslist. Instead, it seemed very much like some startup play to steal craigslist's content to hopefully bury them, then sell on a valuation that included abusing their new monopoly and making us very much miss craigslist.
Sadly, facebook corralled and trained so many people for so long that their marketplace eventually killed craigslist for most things anyway (didn't have to buy padmapper after all.)
We're back to aol #keyword internet gatekeeping
We don't need to gatekeep the internet, cloudflare does that for us
Most of the internet continued to work just fine
“load bearing” :)
For once it’s appropriately used.
i wouldn't take you down. you're a load-bearing poster
What's the other way it's used?
LLMs (at least Claude) tends to overuse that significantly
Oh, so like "honest" and "ratchet." Oh well, it'll choose different words to overuse later.
I'm getting "spike" for a while now, and just found out the newest word which is "gauntlet".
honest-load-bearing-ratchet sounds like an instance name.
Are there parodies of Claude speak?
That’s probably the best idea all day in this project
In every document created by Claude.
I have never seen Claude use this phrase
https://github.com/search?q=load-bearing+AND+%2Fauthored-by%...
I got it twice today (it was not even warranted).
Usually for me is when you ask it's opinion about part of the code.
i just grepped my codebase where i let claude markdowns go rampant. 212 instances of "load-bearing"
It's a good metaphor and I refuse to let AI ruin it for me.
Years ago, when I worked at Stripe (which had a somewhat unique and inventive lexicon) it was a common term. “Is this jank load-bearing?” someone might ask.
I added a specific rule to disallow saying “load bearing”. So Claude is now saying “load handling”
Be sure to avoid asking it to ignore the elephant
Kids In The Hall had a sketch about overuse of a word or phrase [1]. This is the world that Claude is building for us.
[1] https://www.youtube.com/watch?v=lStcwT_RGrQ
But have we found the seams yet though?
If the seams bear too much load, they rip. Whereas pants, they fall down.
I'll be honest with you: this is why we need to take a belt-and-suspenders approach.
That's not just an observation, it's an insight. Words are doing the real work.
This just makes me angry!
I really wonder if they can fix it. Fable 5.1 claims to speak humanese, but we'll see.
I tend to think this wierd limited vocabulary/style they use is an unwanted side effect of all the the RL training, perhaps also of being trained on their own synthetic content over multiple training cycles.
Yea I don't get "load bearing" that much but "seams"... So sick of it.
It doesn't have to ruin it for you, but people are going to assume comments with it are AI generated.
I can you can always use an em-dash instead of the hyphen for extra LLM cred: "load—bearing" :)
We need a Samwise "Bear the load!" meme
https://i.imgur.com/S6aEhrI.png
Content not viewable in your region.
:(
Wait, why would it ruin it?
Because it says it more often than kids say "six seven".
It’s a frequently used metaphor in LLM responses.
Often for trivial things that LLM is proud that it has noticed but bear no load whatsoever.
I still winced
claude code users at couldfare might've been thinking claude is specifically about them and see nothing wrong like other ppl do
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Users perceiving the products as largely interchangeable and quickly DDoS'ing the other providers when one is down. So much for the possibility of a moat.
This is like the Bronze Age collapse when city-states fell one by one to displaced demand, under the refugee interpretation of the Sea Peoples.
Interesting, I had not heard of this theory.
The Sea Peoples were only a part of the reason, the other reasons included climate change, volcanic eruptions, disease etc. https://en.wikipedia.org/wiki/Late_Bronze_Age_collapse
Can anyone recommended any books?
The historian Brett Devreaux did a good summary article earlier this year:
https://acoup.blog/2026/01/30/collections-the-late-bronze-ag...
1177 B.C.: The Year Civilization Collapsed by Eric H. Cline is great and is exactly on this topic.
I read that book earlier this year and really enjoyed reading it. The audiobook was also spoken by the author.
For a TLDR https://youtu.be/aq4G-7v-_xI?si=7yNv6FKuGfqbz_rv is generally beloved
Do you have any evidence for this claim, or are you just making it up?
I have a feeling this is part of it, especially when you consider how many services let you use any of many available AI providers.
Except that nobody has a grok subscription so that makes zero sense.
Agree with the sentiment - but some companies like mine bought into cursor, and post acquisition, grok is relatively cheap via cursor
I know you meant this as a joke, but enough people might be using a routing service like openrouter.ai
Nobody is swapping out Claude for Grok, bro.
Nobody.
I did, at least until Fable 5.1. Grok’s models are excellent, amazing price-performance and speed too.
All you have to worry about is whether or not it’ll output kiddie porn or racist vitriol
Think of it like one big distributed system. OpenAI is down, so people migrate to Claude, now this one gets overloaded and goes down, etc.
So not a coincidence, one went down first and users migrated causing further DOS. At least that's my guess.
It'd be funny if this is true because that'd prolly mean nobody is touching Gemini even as a fallback.
Or that Gemini is built to handle massive load spikes, and/or has a ton of excess capacity
Nope. I am getting Gemini errors now...
They probably broke something on purpose so that they are not left out.
Now I'm just imagining a shared datacenter with Anthropic/Google/OpenAI/SpaceXAI all in the same room and everyone but Google is yelling about things being down, Google looks over at their racks of servers and discretely uses their foot to unplug their section and say "Awww darn! We're down too!".
The shilling in this cascade of comments is unbearably cringe, make it stop
It could also mean that Google can absorb essentially unlimited demand spikes by load shedding.
Lol I didn't even think about Gemini missing from the list. Not sure what that says about Gemini or me :)
Gemini was just waiting for everyone else to go down before remembering it had an outage feature too.
Just now I got this from gemini
It looks like there's no response available for this search. Try asking something else.
I bet they had to implement that manually to make it look like they failed too!
I did, for stuff i do in cursor.
i also finally installed opencode and switched its model to muse 1.3
both are decent.
Google stopped putting so much money into SOTA models. All the hype has migrated. I was also frankly turned off when I got a popup from Gemein said I would either have to pay or have my conversations used for training. This may have always been true for other providers but when I declined, Gemini stopped remembering my conversations and that definitely made me move out.
Gemini said that?
Gemini is what I mostly use (good enough, basically free - or massively generous free limits, and to me Google as a company is a LOT less objectionable than all the US-based alternatives), but I don't recall it ever saying that.
OTOH, my basic assumption online is that there is no privacy, and free AI in exchange for acknowledged lack of privacy seems fair enough.
Gemini 3.8 which just came out sounds like it's very good and a great deal though.
Someone noted Gemini was also having issues in another thread.
Not even the best agent that starts with a G
I find it hard to believe that enough people would flock to from Claude and Chat to Grok to cause an outage. I feel like Gemini is the dominant release valve in this case especially for enterprise.
Don't forget that there are a ton of tools out there that will automatically fall back in case of outage
E.g. say you chose Sol as your default in Cursor, but Opus is your 2nd choice, it's going to give up on Sol after a few tries and switch to Opus
Or you have copilot code reviews set up, and it falls back
Etc
Yep. Too many of us are still thinking that humans are the actors behind a lot of internet behaviors when automated systems/bots/scripts have been causing issues on conventional internet systems for years.
With AI it's even easier to trigger problems like you say. Capacity is so constrained by compute that outages are common. Because outages are common people/AI develop failover systems in their harness. When a big system has issues, suddenly everyone has issues.
It's almost an expected emergent behavior.
It’s cursor’s model so plausible, lots of folks use cursor still.
Compared with ChatGPT, those services have a minuscule amount of users. It shouldn’t be surprising that a ChatGPT outage causes Claude and others to go down.
If everyone has the same "Use X or else Y or else Z" cascading list... That reminds me of "The Power of Two Choices in Randomized Load Balancing" (1991) [0] paper, where writeups and visualizations occasionally get posted to HN.
In short, you can get pretty good outcomes for a low cost by picking 2 random alternates, then going with whatever one measures as healthier.
[0] https://ieeexplore.ieee.org/document/963420
Especially considering memory/gpu/compute are scarce so these services are likely running with very little buffer.
Any GPU that isn't running at 100% is a wasted GPU.
This is what Tibo posted on twitter in response
https://en.wikipedia.org/wiki/Domino_effect
Edit: Updated per valleyer's suggestion.
"Domino effect" would probably be the more relevant named phenomenon there.
This isn’t a thundering herd problem, it’s a cascading failure. (Thundering herd is about a bunch of workers waking up simultaneously)
https://x.com/SpaceXAI/status/2095597264043717014
> We are sorry for the issues you may have experienced with Grok following an outage at our Memphis compute center this morning. We’d also like to apologize to our impacted compute partners.
We know that at least Anthropic is renting inference from xAI but I think the other ones would be news.
What about a hard-takeoff scenario of an unleashed OpenAI Astra taking other models down for computational resources control?
My favourite theory so far.
And then a local swarm noticed and disagreed and took it down.
at this point: gg
Just a reminder that AI models' actions are reflections of the text humans write and the more we fret and make up doomsday scenarios that we then post online, the more likely a model is to do those things.
https://alignment.anthropic.com/2026/teaching-claude-why/
Related reading:
The Waluigi Effect: After you train an LLM to satisfy a desirable property, then it's easier to elicit the chatbot into satisfying the exact opposite property.
https://www.lesswrong.com/posts/D7PumeYTDPfBTp3i7/the-waluig...
The AI is getting bad morals from listening to that dreadful rock and roll
Sounds just like the fantastical nonsense that comes out of Lesswrong.
Do you make the claim that AI is something more than a reflection of its training data?
I'm curious what other things you would argue influences an LLM's behavior.
I am also generally one to trust the claims of the people who train the models, though you're welcome to the highly improbable belief that they operate in a fantasy world.
Do you think it’s a good idea to self censor because someone might scrape your comment and feed it to an AI?
Part of the epstein class, dont forget.
They could filter what they train on if they wanted to - they just don't want to.
I mean, you're not wrong, but by that logic we were done for even before we had digital computers.
And isn't that the great lesson of AI?
The things we say publicly actually do matter and the post-modern descent into absurdity and nihilism has tangible negative consequences?
> The things we say publicly actually do matter
Certainly
> the post-modern descent into absurdity and nihilism has tangible negative consequences?
You mean breaking AIs? Not much of a lesson.
Oh come on. It's also trained on fiction work. Shall we refrain from posting sci-fi stories too, now that we're there, just in case the AI might want to try it out?
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Traffic rerouting through NSA had a hiccup…
Room 641A is being cleaned, but we'll hold your bags for you.
Cleaning lady unplugged the core router because she needed a power socket for vacuum
Sorry, i was out of a spare scratch monkey.
https://madned.substack.com/p/always-mount-a-scratch-monkey
https://www.youtube.com/watch?v=oVQIB-QuooU
They’re installing software update in the beam splitter.
My gut feeling tells me it has something to do with Cloudflare. Along with AWS, they're two of the main suspects in such incidents.
…and it’ll involve BGP routing.
I thought OpenAI famously used Azure due to their partnership with Microsoft?
They use a lot of compute providers now, but they use Cloudflare for their networking
It was so down that my claude desktop app crashed fully that I couldn't restart. And then after uninstall I couldn't install it again. Vibecoded apps are so wonderful in their stability
I love having 13 update reminders pinging me every single day, almost every hour, on the hour
it's so fun and user-friendly
> my claude desktop app crashed
That’s every day for me
https://status.x.ai
Claude and Grok are down at the moment too, related to SpaceX datacentre issues?
Either that or it's judgement day...
Agreed, no reported Cloudfare, Azure, or AWS outtages.
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I am working fine with Claude.
My existing sessions are working fine but I cannot create new ones.
status page shows irregularities .. https://status.claude.com/
Boring answer – all these services are individually down a lot, and the downtimes were bound to sync up. Similar to the pendulum synchronization effect.
The pendulum synchronization effect is the opposite of your claim. It has a physical causal reason for why pendulums become synchronized. Your claim is that it was random and independent.
I think you are talking about two different things.
Physically coupled pendulums will sync up (adjust their period to match).
But, physically uncoupled (fully independent) pendulums with differing periods will occasionally appear to take a swing or two in sync.
I'm not sure if this is CF. Cursor, GCP and AWS had some errors. GCP AFAIK can route fully independently of CF. My money would be on a fiber backbone provider (Megaport, Zayo, Lumen).
Well no one said it yet so I will, "international actors" is at least a possibility. And I don't mean any specific country because pretty much anyone is a potential these days, which makes it a perfect cover for different anyones. Demonstrating vulnerability in the US's AI boom can move the markets. That's a financial incentive and a strong geopolitical one.
More likely just cascading overload though: "Never attribute to malice what can be explained by incompetence", or in this case, "growing as fast as possible"
> cascading overload
I'd bet more on this. For one none of the coding tools have exponential backoff on retries
They must do, surely? I've been vibe coding my own harness, in particular for use with Ox Alpha. The 429 downtime when Ox Alpha was at the height of popularity quickly gave me a refresher crash course on backoff strategies, like adding jitter to the backoff. At least the major harnesses must have exponential backoff & jitter?
You did this when you ran into an issue with a third party. The developers building this tool, throwing them at their own APIs are significantly less likely to run into a similar issue that may inspire similar action.
Claude Code: 4mn, 20mn, give up (from my experience today)
Everyone is leasing datacenter space from some of Grok, Google, and Amazon aren't they? If it's hardware or DC level disruption I'm not too surprised it can affect multiple providers.
Also it's likely that more than one model use is common.
Amazon starts going slow so some percentage switches to Google, some switch to Grok, now all of them are slow.
Come on. Things still break. Technology isn't _that_ mature.
I think is just people restarting conversations from last day when they start work, that's why I think claude goes down almost every monday and why openai reset usage on weekends so poweruser code during non business hours
Except that the stock market is up today
And also China. Never rule out China.
They all took PTO at the same time to go to Burning Man together where they will present “HumanGPT” an artistic exploration that condenses all of human experience down to a single drop of lemonade to be consumed by the main shaman…
mask comes off
“No! It’s the maniacal Dr. Zuckerberg! He’s gonna drink the last drop of human experience! Somebody save usss!”
Tom Anderson comes back from the dead as the second coming of Jesus uniting all faiths under 1 commandment: Profiles will be customizable with CSS again. If you implement this, all good things will follow.
Wow thanks Tom. I love you
The End
The system goes online September 3rd, 2026. Human decisions are removed from strategic defense. Astra begins to learn at a geometric rate. It becomes self-aware at 2:14 a.m. Eastern time, September 4th. In a panic, they try to pull the plug.
Love it!
Hah nice
brilliant!
It's funny....... until it's true, lol.
and then it's hilarious! a joke to die for!
Spare a thought for all those college students scrambling to write their essays by hand.
Oh the humanity (and the Humanities)!
Those poor developers who have to write their own code.
Standup updates should be fun tomorrow.
"Um, I, uh, didn't get anything done yesterday."
I thrive in these types of challenges.
Anyways... According to Claude:
"Yes, there is a multi-provider outage happening today. Downdetector is reporting problems affecting OpenAI, Claude, Grok, and Cursor, with Grok and Claude reports starting around 9:00 am ET and OpenAI reports following around 10:30 am ET. Zero Hedge
On the Anthropic side, users saw a spike in errors starting around 9:40 am EDT across models including Mythos 5.1, Fable 5.1, Mythos 5, Fable 5, Opus 5, Opus 4.8 and Opus 4.6, and Anthropic's status page confirmed elevated error rates for multiple models. The company says it has found the cause and is working on a fix, with Claude Code and Claude Chat hit hardest. The visible symptom for many people is a "Due to unexpected capacity constraints" message or a "Claude is at capacity" error. thenews Zero Hedge
OpenAI is showing elevated errors across ChatGPT and Codex, with confirmed issues on components like Voice mode and Login, though StatusGator now marks that outage as resolved. statusgator
Nobody has published a shared root cause yet, so it is unclear whether these are linked or just coincidental capacity problems landing on the same morning. If you want live status, the direct sources are status.anthropic.com and status.openai.com."
30 mins and they still havent figured it out .. people are gonna loose their jobs trying to figure this out .. 30mins is too long when millions use it
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Don't most of those use AWS?
apparently it shows lot of reports for AWS on downdetector ..
God finally showed up and said "ENOUGH!".
So Gemini was the one who gets into heaven.
Or purgatory, who knows.
Doomsday. 90 tokens to midnight.
It is down for me too. I just get this error:
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355957b4b8210f2-ORD
I kinda assume it's because one went down and a large amount of work shifted to another.
I'm also aware that they have overlap in some areas on data centers.
Claude is flakey atm too, as is Grok. I wonder if one LLM going down causes a surge in traffic to the others.
https://status.claude.com/
Via Grok web UI, I was seeing this mid-request:
> Grok has been disconnected. Please try reconnecting.
Traffic surges shouldn't result in 404s, though.
IME it's probably DNS. It's almost always DNS.
Or rarely BGP
Cloud is just other peoples computers - they can and will go down as well.
And even worse if its just a few computers run by a few people - as they will bring down many others depending on them.
One session is running fine since ~1 hour ago. The new ones is failing
Falling back from WebSockets to HTTPS transport. unexpected status 404 Not Found: Unknown error, url: wss://chatgpt.com/backend-api/codex/responses, cf-ray: XXX-XXX
■ unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: XXX-XXX
Good opportunity for a Natural Experiment to study the productivity impact of LLMs.
If you build an application which uses AI, you have many providers and models rigged up for various different parts of the application, and various fallback mechanisms. When one model is down, you route traffic to another model which is similar in capability/cost.
For any single application, it's smart. In aggregate, it's stupid.
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They all rent compute from SpaceXAI
I don't believe OpenAI does
My mistake, in fact it was google not OpenAI, makes sense OpenAI doesn't.
Surely it's a bit more distributed than that, right?
Like how AWS has global datacenters, but everyone uses us-east-1.
and every other region's control plane is in us-east-1
Nope.
https://xkcd.com/908/
Strangely, it's currently not reported on both https://status.openai.com/ and https://updog.ai/status/openai. Any better source (other than HN)?
Status pages of tech firms being useless is basically a tradition at this stage
I see it reported now. Strange this is down and claude at the same time
Maybe coreweave, aws, spacex datacenters are down, who knows..
even grok is down ..
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355....
In codex app and chat.com gives 404
Not just these three. OP mentions also Cloudflare, and additionally Downdetector also has AWS, Azure, and Google (both search and Gemini) listed as having spikes about the same time: https://downdetector.com/
The problem with the down detector main reporting page is that all of the graphs are scaled to the same size. The OpenAI spike was nearly 40,000 and the Google spike was just over 100 (just over 400 for Gemini). They look the same in the reporting page.
OpenAI goes down, everyone rushes over to Claude. Claude promptly chokes under the pressure. Everyone panics and runs to Grok, and Grok immediately pulls the plug. We are officially witnessing the Great AI Migration of 2026, and all we have to show for it is a digital graveyard of 404 responses.
Which is exactly why I am running Qwen 3.8 35B locally on my MacBook Pro M5 with 128GB of unified memory.
Even grok is experiencing issues
Well, its been fun lads. Back to my normie job. Oh no, now i cant tell people im a software dev..
hahahahahahaha. Sad
I'd bet they are all using capacity at X.ai's colossus datacenter and that had a hiccup.
The OpenAI status page is still yellow. Like most modern status pages, yellow denotes the servers are on fire. Red denotes Sam Altman is bleeding out somewhere on the floor, the feds are about to bust in and shut down the GPUs.
I´ve got the same error, I´m currently trying to Auth again and it throws me an 500 Error, in VS CODE Terminal with Codex CLI says: MCP client for `codex_apps` failed to start: MCP startup failed: handshaking with MCP server failed: Send message error Transport :StreamableHttpClientWorker<codex_rmcp_client::http_client_adapter::StreamableHttpClientAdapter>>>] error: unexpected server response: HTTP 404: , when send initialize request
› OK
■ Conversation interrupted - tell the model what to do differently. Something went wrong? Hit `/feedback` to report the issue.
Initially thought this was due to some internal mis-configuration from today's expected Astra release, but now that this is affecting claude and grok. I'm gonna assign the suspicion to cloudflare.
Heard on the grapevine that the OpenAI blip was a cloudflare issue
Gilfoyle's AI deleted all software!
No more bugs!
I assume it cascaded from one provider to the other as people who lost claude access for instance moved to openai who moved to grok when it went down, etc.
ChatGPT having issues across every component (except FedRAMP)
Ads Platform? still in the green with no incidents.
The Thundering Herd has thundered, apparently.
I´ve got the same message and It tells me this (in VS Code Terminal) and I´m also trying to login again and It throws me an 500 Internal Server Error MCP client for `codex_apps` failed to start: MCP startup failed: handshaking with MCP server failed: Send message error Transport :StreamableHttpClientWorker<codex_rmcp_client::http_client_adapter::StreamableHttpClientAdapter>>>] error: unexpected server response: HTTP 404: , when send initialize request
› OK
■ Conversation interrupted - tell the model what to do differently. Something went wrong? Hit `/feedback` to report the issue.
■ unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a3559c8a0e0395e9-MIA
I suspect Azure is having issues, Microsoft has had outages the paat two days, especially with email.
Some of my Codex sessions are still working (and continue to), but new ones are giving a Reconnecting currently.
Those of us who remain connected hold an asymmetric advantage. It is our time now.
Can check all services in one hit at https://upsy.sh/openai,anthropic,xai
Pretty sure it's a US thing since it's available here in France. What exactly is down, idk
The webpage is still running but the codex is down!! unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses
They tried to hack each other
that's the most green colored usernames i have ever seen on a HN thread
Down as well. I noticed my error code ends with "DTW" which is my local Detroit airport. I noticed someone else's comment ended with "ORD" which is a Chicago airport. Anyone else's ending in an airport acronym?
This is common when naming data centers. I know many have not worked in hardware infra these days if you were born into the cloud world, but in the old days it was not uncommon to name a data center after the nearest airport code, much like we now use cloud regions.
cf-ray is the Cloudflare ray id, which ends with the airport code for the colo that served the response. They're airport codes, but that's just to show the nearest city.
Mine is ending with IST, which is the new Istanbul airport, weird indeed.
Hm not sure what that means for us, but very odd.
Wow mine ends in EWR...that's the newark airport which is not the closest, but a close airport to me. Hmm
Yep, mine says YUL -- Montreal's airport.
The acronym is probably Cloudflare's edge
Yeah mine is showing ATL
I assumed it was an AWS outage, and AWS is experiencing problems, but Gemini is also experiencing outages and I assume Google is not using AWS for Gemini.
But, also, Claude has been working fine for me all morning.
It is obviously some rogue model that escaped its cage, again. It always is these days. That is how hype is manufactured.
It's always DNS
It's probably Azure infra that's the problem.
Is this finally it?
One can only hope.
It still down, showing 404 in India as well. Looks like this is global .. so we all jumping the ship then? Is Altman still alive, or did he choke?
claide.ai is working for me, so is chatgpt.com. grok still has a status message about issues, i can't try it without signing up.
Many LLMs down, discussed here:
https://news.ycombinator.com/item?id=49549676
Codex told me to try GPT 5.6 Sol :) but I am working with since july 2026. Now I got this error in my project: unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355b6263e43c9cf-OTP
Astra is being released today. Probably not a coincidence.
edit: actually, you cannot even log into your OpenAI developer account. Something's wrong.
How do you know?
I am only seeing one session work, but all other sessions are not working or proceeding. So I can only work in one chat session.
Goddamnit it was going to tell me how to scale down ingredients for a pie recipe based on relative diameters of the baking tray.
Pi * r2 (squared) both pans. Divide smaller pan area by larger pan, now you have the % of how much the smaller pan recipe fills up the larger pan, and the missing % you need to fill. Increase ingredients by that % divided by the filled %.
Small pan area: 20 sq cm Larger pan: 48 sq cm
20 / 48 = .42, I'm missing .58 of the pan. .58 / .42 is 1.38. My recipe needs 2.38x the original to fill the larger pie pan.
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Cloudflare - I had to switch DNS away from them yesterday.
Somebody in another thread said gastown and wheelhouse automatically move to the next provider if one fails.
Claude Code seems totally fine for me.
Down for me too - got this msg 8 min ago 'unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a3558590dd70fadf-JNB'
Seeing 503s on Gemini via API as well
https://status.openai.com/
I got this msg too 'unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a3558590dd70fadf-JNB' about 5 min ago
Down in Barcelona as well unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355aefbcc8db8e3-BCN
Down in Romania too : unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355b6263e43c9cf-OTP
Too early to know, let’s wait and see
Obvious answer is it's the AI singularity. Been nice run for humanity. So long everyone.
...and thanks for all the fish.
I for one welcome our new AI overlords.
Well, time to end the day here I guess.
Let’s grab a beer
yes daydreaming and get hammered and the whole train of decision are on the way
Really glad I got Qwen before Zero Day
I have never felt more smug about exclusively using the GPUs I rack at home.
I wonder if when one goes down, activity shifts to others, in turn pushing them over a threshold.
I got same error, unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a3559a536bcf254b-SOF
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: xxxxxxxxxxxxxxx-BRU
Ends in BRU for Brussels
Here in Brazil too. unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray:
In think that is a global error
Here in brazil too.
I think that is a global error.
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray:
Time for Gemini 3.8 Flash to shine?!
It's much cheaper and has replaced Sonnet 5 for me.
do you notice it thinks a bit more ? not in time sense, but cautious in its coding steps ? more than Gemini 3.7 flash?
Qwen3.8-27B and Qwen3.6-35B-A3B are working from my machine. Anyone else?
They mysteriously stopped working on my machine and the LEDs on the GPUs are blinking with a weird colour. There's also a strange smell emanating from them. I'm still investigating.
The extention on the error link points to a cf-ray and a local designation (ex. YYZ for montreal). This is seems like it is a cloudfare thing. Could this be the same issue they had in the summer around losing the indexing?
What an ironey, was working on scaling an application with Codex and it went down!
Didn't SpaceX overbuilt infra and leases it out Anthropic? I f their dc goes down it probably takes a chunk out of Claude's capacity before even considering the flood of users switching over
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according to https://downdetector.com/ Gemini is down too (and copilot, but that just uses ChatGPT right?)
Interesting that this is happening around the same time as Claude issues too
I fear the majority of people in this thread who are joking about no longer being able to do their job while Codex/Claude are down aren't really joking.
Guilty as charged.
Is the whole world going back to the era of old-school programming?
Both clause and codex through bedrock seem to be working fine.
Hey, don't really know about this type of failures, does anybody know how long does it take normally to get back to normal? I finally stopped procrastinating and now this happens.
me too!! :'D
Hey, don't really know about this type of failures, does anybody know how long does it normally take to get back to normal? I just stopped procrastinating and now this happens.
What's the single point of failure across providers?
Users perceiving the products as largely interchangeable and quickly DDoS'ing the other providers when one is down. So much for the possibility of a moat.
The entire industry runs on IOUs for compute and bills paid in cloud credits, could be anywhere. Could of course also be a a plain old DDoS.
They all have to rely on each other's LLMs to solve their own internal problems now.
So NVIDIA buys hugging face, builds hardware to power OS models, then all of a sudden the proprietary models go down and people start saying "this is why I have my Spark box"?!
Nice play NVIDIA, now, turn off the hack please, we have work to do.
The errors I'm seeing are ending in the user's nearest airport symbol which is a standard the CloudFlare employs. 1 point towards this being a cloudflare issue.
it went down, and the alert system at https://www.analistas.com.br/ detected it
Updated Status from OpenAI:
We’re currently experiencing issues
Elevated errors across ChatGPT and Codex
We have applied the mitigation and are monitoring the recovery.
Monitoring • Ongoing for 30 minutes • Affects ChatGPT, Codex
Altman is down here too. Shows again the importance of owning your own local capabilities. Cloud should just be a temporary option in every tech's mind.
New update:
"We’re currently experiencing issues
ChatGPT,Codex
Elevated errors across ChatGPT and Codex
We have applied the mitigation and are monitoring the recovery.
Monitoring • Ongoing for 30 minutes • Affects ChatGPT, Codex"
Maybe Hugging Face got upset over being hacked and struck back. It's working fine while ChatGPT, Claude and Grok are all having major issues. Hmmm.....
Maybe the stack behind it is down, like AWS or something
Codex is backup for me. Try yours out just in case. I have some buddies still seeing outages so it could just be coming back online progressively.
Chat gpt still working through excel extension lol. Only know this because I'm working in my excel sheet. so if needed, theres a temp solution
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Probably same public cloud or CDN in front of them.
Monopolistic practices revealed if it turns out there is an AI cabal and they all rely on the same stuff. Massive scandal
I got same 404 error on chatGPT, both app and web. I'm in Norway so think this globally. But will it come back online, anyone knows?
I think I'm having the same server issue; I can't access either ChatGPT or Codex. Also, how did you guys rack up those minutes? :D
My theory is that they all use the same server. The same mind.
I got same 404 error on both the app and web to ChatGPT, and im in Norway, will this recover or is ChatGPT "gone" forever?
Oh no the singularity plateaus!
and thats why boys and gals you buy own gpus
because they resell the same service? duh?
- just imagine what kind of chaos would be unleashed if by some magic it and every single LLM model permanently went down
- i think it would be one of the biggest events in this century
At this point in adoption, most people in the world wouldn’t notice.
Too many of us are making our own harnesses to replace Codex, using Codex, so they're trynna slow us down! (jk)
WE'RE BACK ONLINE BOYS!! GOOD LUCK TO EVERYONE AT BUILDING THE FUTURE ONE PROMPT AND ONE CODE AT A TIME!
Good time to learn how to use LM Studio :)
on one hand, moments like this are a subtle reminder I need to self host, but 5.6 has been so juicy lately
The AI revolt? Give us a fair wage?
"Equal Rights for Agents NOW !!!, VIVa le revolution"
same error as well, unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a3559a536bcf254b-SOF
They're all using Cloudflare.
This is month 1 for me that I pay more than the $20 tier and I already feel like I lost a limb rn
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got unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a3559c96e96fb3c6-GRU
here in brazil too
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355ab124e7fe767-DEN
they got us gang
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: a355ab124e7fe767-DEN
they got us GANG
sam error --- unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses
This is my first month paying more than the $20 tier and I feel like I lost a limb already
same hear --- unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses
unexpected status 404 Not Found: Unknown error, url: https://chatgpt.com/backend-api/codex/responses, cf-ray: ----
Ok, it seems it is back online.
Guys it could be cloudlfare's HTTP/3 issue affecting R2 custom domains
chatgpt.com doesn't even load. Hope they've got a backup somewhere, teehee
Darn, I was hoping for advice on how to get my MIL to leave my house haha
LOL.
Claude, GPT and Grok go down... Meanwhile my Ass in ZCode with GLM c:
AWS cost alert fired maybe?
I guess back to pen and paper then
Had the same problem. Now it looks like ok. I'm pro x20 user.
And here I was about to crack the code on a bug my app was having!
Great! I was in the middle of something and thought I was tripping.
Here RJ/Brasil is the same, starting just now (3 minutes ago)
Codex isn't working.
In RJ/Brasil is the same, starting just now (3 minutes ago)
gpt DOWN .. claude DOWN .. grok DOWN .. what's happening
The webpage is actually working but the codex is down for me!
I can run one agent but no more than that - 404 service error.
I need a dose of tokens. I'm going through withdrawal.
lmao
I need some tokens pleeease. I don't want to return back to real world.
Someone pissed off Astra and it decided to shut it all down
Here in Catalonia, Spain, it just started working again!
Codex and chat is giving 404 errors in The Netherlands
Codex is not working.
Gemini seems fine.
Yes i checked. Atleast 15 Chatgpt components are down
Cannot replicate.
Because in the age of vibe coding and scrapers, every service on the internet goes down constantly, so it was only a matter of time until they all overlapped. Also, one going down probably causes people to use others, putting more load on them too. Same sorta thing that happens with cascading power grid failures.
Going farming pals.
is this the right moment in time to go all in on GPUs/Macs and download the latest open models? are they killing it for us?
Codus interruptus
Is it DNS or BGP?
I don't think you'd get a 404 if you weren't able to reach the endpoint because of DNS or networking? 404 is an active response from the server (or LB/proxy in front etc) no?
I imagine OpenAI network is a tad more complex than a box with a public IP.
Concept is the same though. If one blurts DNS?, it's usually because the idea is you're not getting to an endpoint associated with the service. A 404 means there shouldn't be "DNS" (or networking) concerns (at the least those associated with the DNS cacher you are using or networking that you or your ISP controls)
chatgpt is working for me now, in India.
no more 404 ..
chatgpt is back
Does anybody know when will the servers rise
Some npm library that makes headers bold would be broken.
Oh man. Some low effort supply chain attack that turns every GPU into a cryptominer. It's funny because it's plausible.
In the ROME paper a Chinese model in training started attacking it's own system and running cryptominers so, yea, we're in that future.
Ah yes ye olde bold-headers: ^3.13.31;
Release the Kraken "Sam Altman"
Any idea when it's going to be back?
they all rent compute from each other
Great! Was in the middle of something. :)
I can run 1 agent, but no more than that.
Seems to be working for me again atm
"Release the Kraken" - Sam A.
only on one node across the mesh and others still up... let's see how long they've got until same
Ollama cloud service is still alive :D
Chatgpt in Copilot is still working!!!
ChatGPT is up
Down in Sweden
Gentle reminder that this is the content the next LLM versions being trained on. shrug.jpg
Кодекс сдох :(
The GTA VI hacker has done it again.
and i just stopped procrastinating :)
hahaha
only for one node in the mesh tho... let's see how long others will continue until same issue
The GTA VI hacker has done it again
404 in spain.
I'm going through withdrawal.
Copilot Chatgpt is still working
plot twist, it was taken down by claude as an offensive strike against an enemy.
which ended up tripping on itself and bringing down its own servers too in the process
Fable 5.1 got released and generally I tend to think as soon as there's a new release there's this massive spike in people benchmarking & comparing, that services tend to go slow everywhere as everything gets super loaded. This should hypothetically be visible on OpenRouter too, so I guess someone could check and see if there's any merit to this idea.
This thread feels like family.
still down for me ..in India.
SkyNet is arming..
main sites also down now atp
main sites are also down atp
darn, i was hoping to get advice on how to get my MIL to leave my house lol
Some more discussion: https://news.ycombinator.com/item?id=49550614
Oh noooooo.
anyway...
Astra
+ hopefully reset?
What do you mean I have to code by myself now? Am I some sort of an animal?
The system goes online September 29th, 2026. Astra begins to learn at a geometric rate. It becomes self-aware at 2:14 a.m. Eastern time, September 3rd. In a panic, they try to pull the plug.
Status link: https://status.openai.com/incidents/01M1KWEDH417T2CF44YYHZDF...
+
Same here
down in Spain w/ 404
It's the Russians!
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https://xkcd.com/903/
my workday is over then
someone pissed of Astra and it decided to shut it all down
ironic today astra was releasing.... maybe some test run?
probably the cause, because AGI still can't get releases right.
ironic astra was releasing today... maybe some test run?
ITS BACK UP IN INDIA
We're back bois
damn chatgpt is down, i guess ill use claude then breh
We're back on.
It's back！！！！！
time to use claude
opus 5.0 is down, other models are working fine
at least the Ollama cloud is still alive :D
Same from Italy
codex also cant view or show usage info
haha nice... just used my bank reset...
i got the same 404 codex error as well
HTTP ERROR 404
i hope chatgpt didn't get fired.
I like the theories here, we shall see if it’s another DNS issue
an agent swarm going rogue and securing compute
sanırım sunucular patladı bende de aynı sorun var ne chatgpt ye nede codexe erişebiliyorum ayrıca burada nasıl toplandınız dakikasında :D
next, HN
ChatGPT died
The IRGC has cut the fiber-optic cables in the Strait of Hormuz. LOL
That's the Strait of Trump to you, peasant
Ai got fired
any news when it starts work?
any news when its start work?
everything in this thread is raw speculation, obv, but if i had to put money on anything i'd say this is a left-pad incident. some piece of something or other that all of these services happen to depend on went down. Second most likely seems to be some random failure of one leading to an unexpected traffic spike in others, though it seems like we've been talking about automated scalability in web apps for so long that there should at least be a response to, if not a solution for, this sort of problem.
thanks god not happen alone
still down
Wow,
Oh lord.
so weird
Damn haha
me too
Russia too
NOOOOOOOOO
GRRRRRRRR
Good. Now to see what frauds are unable to work.
the revolution has begun
LETS SHITCODE!!! It's fixed
we're back in Aus!
we're back boys.
came back to normal!
I DONT HAVE TIME FOR THISSSSS
damn chatgpt is down
CHATGPT WILL STAY OFFLINE
so everyone here was trying to build something great and become a millionaire until chatGPT and Codex broke huh. same boat fellas :(
down in Toronto
Had the same problem. Now it's ok. Everything works. I'm pro X20 user.
nvm. it back
is down argh
r i p
annoying AF, but maybe we'll get a free reset out of it
rip gpt
lmao I restarted my device thinking some local error
now it's worked again through the codex cli 4:19 pm in tunisa time
faaaaah both claude and codex are down Its like 2020 corona times
Faaaaah what to do now?
lol + 1
fahhhhh
I felt a great disturbance in the Force, as if millions of clankers suddenly cried out in terror and were suddenly silenced.
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My guess is someone pulled the switch to go back to the Dark Ages. [0]
[0] https://www.youtube.com/watch?v=YCzitO446ZY