What this error means
overloaded_error / model unavailable / maintenance mode is a Anthropic API failure pattern reported for developers trying to anthropic api 用户在模型不可用（过载、维护期间）时收到错误，需要了解恢复时间和规避策略. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.
Why this happens
covered-errors.md 列出了 Anthropic API 401/429 等但尚未覆盖 overloaded_error/model unavailable 场景。这是高价值支付用户的常见问题，直接影响生产 API 调用。mapped to 'Anthropic API' approved category.
Common causes
- covered-errors.md 列出了 Anthropic API 401/429 等但尚未覆盖 overloaded_error/model unavailable 场景。这是高价值支付用户的常见问题，直接影响生产 API 调用。mapped to 'Anthropic API' approved category.
Quick fixes
- Confirm the exact error signature matches
overloaded_error / model unavailable / maintenance mode. - Check the Anthropic API account, local tool state, and provider configuration involved in the failing workflow.
- Compare the failing environment with a known working setup, then change one configuration value at a time.
Platform/tool-specific checks
- Verify the command, editor, extension, or API client that produced the error.
- Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
- Avoid deleting credentials, local model data, or project settings until the failing scope is clear.
Step-by-step troubleshooting
- Capture the exact error message and the command, editor action, or request that triggered it.
- Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
- Review the source evidence below and compare it with your environment.
- Apply one change at a time and rerun the smallest failing action.
- Keep the working fix documented for the team or deployment environment.
How to prevent it
- Keep provider/tool configuration documented.
- Record non-secret diagnostics such as tool version, provider name, model name, and command path.
- Add a lightweight check before CI or production workflows depend on the tool.