[Bug] Anthropic API Error: Overloaded Error (529) during Claude Code operations

I got the same issue

Same here

Found 3 possible duplicate issues:

1. https://github.com/anthropics/claude-code/issues/35484
2. https://github.com/anthropics/claude-code/issues/23049
3. https://github.com/anthropics/claude-code/issues/13990

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i'm having the same issue.
API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded.
https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9F5brZrKf6Yv65GC28c"}

same issue
 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9GNxEW5xZLMthuRxRjn"}

same here
529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9GRF27Km1yXVo7xAV6a"}

same
529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9GcpHuYWTfSVVneHcpT"}

I got the same error too just now in two of my Claude sessions on my personal account. But on my work (Enterprise) account everything is working fine. So either different hosts are running for different types of customers, or there is prioritization going on.

Same here. Interesting that the request IDs across reports all share the req_011CZ9 prefix. might be useful for triaging which cluster is struggling.

+1

529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9KrhEjhqnzpZcMQ3tPf"}

+1 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9KrhEjhqnzpZcMQ3tPf"}

The error resolved for me.

> +1 > 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9KrhEjhqnzpZcMQ3tPf"} The error resolved for me.

It resolved for me momentarily and went back to the original error after about a minute.

Same here. 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded. https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9MXctVtQ3XeVtoRMRZn"}

Same here

same here multiple times this morning

Same here keep getting this errors

API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server
error"},"request_id":"req_011CZ9PHccxwVMvhVhFU1x84"}
529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded.
https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9PVhitDh7Mwt6NKMqLy"}

I went away and is now back: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded.
https://docs.claude.com/en/api/errors"},"request_id":"req_011CZ9PawE8VkM6Ck7zAHmTy"}

same here : API Error: 500
{"type":"error","error":{"type":"api_error","message":"Internal server
error"},"request_id":"req_011CZ9PKej2PqeXdzKF2mTKH"}

i guess its likely due to their new "double xp" hours lol ?? might spike traffic and we all get fugged

Yesterday I downgraded my plan from Max to Pro. Today, still on Max Plan, I tried to continue my session, and I had the same issues:

API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZA6AhnrEmiSKgC4Htkuj"}

I've tried again after some time:

API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZA6wxFFcwnLGaypUphnG"}

Yesterday I downgraded my plan from Max to Pro. Today, still on Max Plan, I tried to continue my session, and I had the same issues: `` API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZA6AhnrEmiSKgC4Htkuj"} ` I've tried again after some time: ` API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZA6wxFFcwnLGaypUphnG"} ``

Now everything works.

same here

same same same

Same here

+1

 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZAZwApud5De7Zpec1Xio"}

Same here
API Error: 529 {"type":"error","error": "type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZAZhZ4jnvQrU28BzmfM2"}

The same is true for me.
API Error: 529 {"type":"error","error":{"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZAZqERJ2fJRmvezysLP2"}

Same here

  529 {"type":"error","error" {"type":"overloaded_error","message":"Overloaded"},"request_id":"req_011CZAacHZJyYjXHtwzT9UYb"}

claude code version 2.1.78, Model: opus (claude-opus-4-6)

Same error

same error

Same, These are growing increasingly common.

Error 529 for the past 6hrs!!

+1

I guess this is related to the Opus 4.6 outage - https://status.claude.com/incidents/b9802k1zb5l2

same issue here

Just switch to Sonnet till they solve the Opus 4.6 issue.

Just switch to Sonnet till they solve the Opus 4.6 issue.

Yeah that works ty for tip

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