Why were OpenAI, Claude, and Grok simultaneously down?

Why were OpenAI, Claude, and Grok simultaneously down?

220 pointsby halcdev705 comments

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  • What about a hard-takeoff scenario of an unleashed OpenAI Astra taking other models down for computational resources control?
  • 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.

  • 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.
  • Neither of these companies have stellar uptime records. Their downtime episodes overlapped in this instance. In this case, it was a partial downtime for both.

    Also, OpenAI is saying what caused it:

    > "A routing error starting around 7:43 am PT on Thursday, September 3, made ChatGPT and Codex unavailable for some users across platforms"

    Anthropic stated their issue started earlier:

    > "The company began alerting about a “partial outage” at 6:23 am PT on Thursday that involved “elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5.”

    I don't get why everyone reaches for an extraordinary explanation when the ordinary will do: both of these companies have quite a bit of downtime.

  • It’s probably the thing that everyone thinks it is. OpenAI, Anthropic and SpaceXAI are all routed through something that we’re not supposed to know exists and that thing had a whoopsie.
  • 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 work at OpenAI and I was the Incident Commander for yesterday's outage.

    We had a routing error within our infra that caused issues for some of our products. It was not related to the Astra launch. We don't comment on other providers' outages.

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Why were OpenAI, Claude, and Grok simultaneously down? · Birbla