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Constant 429 errors: Claude Code AnyRouter error

Quick fix

Confirm the model mapping is blank and set "model": "opus[1m]"; if 429 errors continue, the issue may be with AnyRouter upstream, so try another network.

Symptom

Section titled “Symptom”
Error output
一直是429
English translation

The 429 error keeps occurring

Cause

Section titled “Cause”

This issue describes persistent 429 errors when using Claude Code with AnyRouter. The maintainer said this symptom means the 1m context model setting was applied successfully, and that the 429 errors came from instability in the AnyRouter upstream service. However, the same thread reported that haiku worked while opus continued to return 429, so retrying on another network may not resolve the issue. Another user reported that adding "model": "opus[1m]" still did not work, so the available information cannot confirm that this configuration works in every case.

Fix

Section titled “Fix”

  1. Leave the model mapping blank in the JSON configuration and add the model setting recommended by the maintainer.

  2. If 429 errors continue, try another network and retry; the thread reports that this may not work.

Affected Versions

Section titled “Affected Versions”
ToolClaude Code
Version3.16.3
PlatformsUnknown

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”
What should I do if adding "model": "opus[1m]" does not work?
A user in the thread reported that restarting Claude Code still did not help. The maintainer thought persistent 429 errors might be caused by instability in the AnyRouter upstream and recommended trying another network, but another user said the 429 errors continued.
Section titled “Related problems”
not installed or not executableUpgrade CC Switch to v3.16.2+, or set the CLI install directory by hand in settings, and clear noise printed by your shell at startup.4 issues mergedcc-switch Codex session history missingDisable Codex routing or unified history in cc-switch, make model_provider match old sessions, then restart Codex to restore history.7 issues mergedConfiguration Not Applied or Lost After Switching ProvidersUpgrade cc-switch to v3.16.2+ (v3.18.0 fixes nvm path detection). Put custom settings in “通用配置” to prevent overwrites; Linux save failures require v3.11.1+.28 issues merged

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