Ask HN: Why were OpenAI, Claude, and Grok simultaneously down? • Hacker News Board

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#251

Post by shadox9999999 » Thu, Sep 03, 2026, 3:28 PM UTC

ChatGPT died

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#252

Post by apurva_w » Thu, Sep 03, 2026, 3:29 PM UTC

reinhash wrote: post #7

tducret wrote: post #4

Strangely, it's currently not reported on both https://status.openai.com/ and https://updog.ai/status/openai . Any better source (other than HN)?

I see it reported now. Strange this is down and claude at the same time

even grok is down ..

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#253

Post by shadox9999999 » Thu, Sep 03, 2026, 3:29 PM UTC

r i p

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#254

Post by wejick » Thu, Sep 03, 2026, 3:29 PM UTC

Probably same public cloud or CDN in front of them.

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#255

Post by Kye » Thu, Sep 03, 2026, 3:29 PM UTC

sabatinip wrote: post #244

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 inclu…

Don't most of those use AWS?

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#256

Post by Melgio » Thu, Sep 03, 2026, 3:29 PM UTC

giftigdegen wrote: post #236

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

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#257

Post by Insanity » Thu, Sep 03, 2026, 3:30 PM UTC

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.

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#258

Post by elorant » Thu, Sep 03, 2026, 3:31 PM UTC

Some npm library that makes headers bold would be broken.

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#259

Post by hardyburnett » Thu, Sep 03, 2026, 3:31 PM UTC

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"

Re: Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?

#260

Post by indigodaddy » Thu, Sep 03, 2026, 3:32 PM UTC

oytis wrote: post #212

indigodaddy wrote: post #61

Earlier quoted context omitted.

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)