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The free quota has been exhausted. Codex still uses the old model after switching

Quick fix

The report of Codex still using the old model after switching has no verified fix in the original thread. Follow the source discussion for updates.

Symptom

Section titled “Symptom”
Error output
stream disconnected before completion: The free quota has been exhausted. To continue accessing the model on a paid basis, please complete your payment information (or disable the "use free tier only" mode in the management console if already completed)

Cause

Section titled “Cause”

The user enabled routing for Codex in cc-switch 3.16.5 on Windows, first enabled qwen3.5, then switched to qwen3.6 and restarted Codex. They then encountered the free-quota exhaustion error. A commenter interpreted the error as quota exhaustion. The reporter added that the old model had no quota left and the new model still had quota, but the Codex configuration still showed the old model after switching. They also reported that the configuration was overwritten every time Codex started. These reports suggest distinguishing the quota issue in the error from the reported failure to switch models. However, the original thread neither confirmed why the configuration was overwritten nor provided a verified fix. The issue is closed, which does not mean the problem was fixed.

Fix

Section titled “Fix”

  1. The original thread has no verified fix. The reporter tried switching models and restarting Codex but still observed the old model configuration, so restarting cannot be treated as a confirmed fix.

  2. Follow source issue #5606 for further discussion to see whether it explains why model switching did not take effect and why startup overwrote the configuration, and provides a solution.

Affected Versions

Section titled “Affected Versions”
ToolCodex
Version3.16.5（报告受影响的 cc-switch 版本）
PlatformsWindows

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”

(No FAQ yet)

Section titled “Related problems”
cc-switch Usage Statistics Differ from DeepSeek Official Site / Stop UpdatingUpgrade to v3.19.2 or later, then run “Rebuild Codex Usage” once on the “Usage Statistics” page to correct historical overcounts or missing records.22 issues merged/branch sessions: parent session hard to find in Session ManagerTry claude --resume or claude -r <sessionId> as the proposed workaround. The original post provides no verifiable Session Manager fix.1 issues mergedusage null - Claude Code Qwen DashScopeUpgrade to cc-switch v3.16.3+, which fixes null streaming usage on the OpenAI-compatible interface automatically.2 issues merged

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