[BUG] 503 Model is getting throttled. Try your request again in opus 4 model

Status Fixed / completed

Maintainer reply None cached

Activity 4 comments · opened Jul 15, 2025 · closed Jul 18, 2025

Environment

Platform (select one):
[ ] Anthropic API
[x] AWS Bedrock
[ ] Google Vertex AI
[ ] Other:
Claude CLI version: 1.0.51
Operating System: Ubuntu 24.04
Terminal: VScode terminal

Bug Description

When I use opus 4 model, and /init (or any other context), I will receive below message

API Error (503 {"error":{"message":"{\"message\":\"Model is getting throttled. Try your request again.\"}","type":"None","param":"None","code":"503"}}) · Retrying in 1 seconds… (attempt 1/10)

Steps to Reproduce

In the VS code termial , use "claude" cmd lanuch claude
/init cmd

Expected Behavior

the opus model is OK

Actual Behavior

receive below message
API Error (503 {"error":{"message":"{\"message\":\"Model is getting throttled. Try your request again.\"}","type":"None","param":"None","code":"503"}}) · Retrying in 1 seconds… (attempt 1/10)

Additional Context

View original on GitHub ↗

4 Comments

mariusccc · 1 year ago

Starting today I get same issue, I use sonnet 4 instead, bedrock. I don't think it matters but I use phpstorm

oiahoon · 1 year ago

same issue here, forever "API Error 503 Model is getting throttled" and "Retries"

kasbaker · 1 year ago

@levpopov, this issue was closed as completed, but I don't see a comment or mention about it. There have only been updates to CHANGELOG.md over the past 10 days in the commit history and this other 503 error is something different. I am experiencing the same issue with Opus 4 on AWS Bedrock, but it happens less frequently with Sonnet 4.

Here's a terminal output:

> /model
  ⎿  Set model to opus (us.anthropic.claude-opus-4-20250514-v1:0)

> /init is analyzing your codebase…

⏺ I'll analyze your codebase and create a CLAUDE.md file with the essential
  information for future Claude instances. Let me start by exploring the
  repository structure and understanding the project.
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 1 seconds… (attempt 1/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 1 seconds… (attempt 2/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 2 seconds… (attempt 3/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 4 seconds… (attempt 4/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 8 seconds… (attempt 5/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 18 seconds… (attempt 6/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 35 seconds… (attempt 7/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 39 seconds… (attempt 8/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 33 seconds… (attempt 9/10)
  ⎿  API Error (503 Model is getting throttled. Try your request again.) · Retrying in 40 seconds… (attempt 10/10)

I also ran claude update and I see it's already up-to-date

claude update
Current version: 1.0.56

Claude Code is up to date (1.0.56)

Can we re-open this issue or can someone provide some information about what the fix is?

github-actions[bot] · 1 year ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.