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Codex reasoning levels reduced to none and high

Quick fix

In the Codex provider editor, select the supported and default reasoning levels in the model row; do not manually edit catalog files that will be regenerated.

Symptom

Section titled “Symptom”
Error output
ccswitch 生成的模型目录只声明了 none 和 high
English translation

The model catalog generated by ccswitch declares only none and high.

Cause

Section titled “Cause”

Codex's cc-switch-model-catalog.json is generated from provider configuration and regenerated when switching providers, so manually editing the file to add supported_reasoning_levels may be overwritten. When the model catalog lacks reasoning levels, Codex reasoning mode falls back to none and high. A comment on another issue suggested not adding mapped models when adding a third-party proxy, but the maintainer's fix was to store the levels in the provider model configuration.

Fix

Section titled “Fix”

  1. Starting with 3.20.0, select the required supported and default reasoning levels in the model row on the Codex provider editor page; common provider presets already include the relevant levels. These settings persist when switching providers.

  2. Do not rely on manually editing cc-switch-model-catalog.json to persist reasoning levels, because the file is regenerated when switching providers.

Affected Versions

Section titled “Affected Versions”
ToolCodex
Version3.16.5（issue #5259 报告版本）；3.19.2（issue #6244 报告版本）
PlatformsmacOSWindows

Source Issues

Section titled “Source Issues”

This page is distilled from 2 real issues

FAQ

Section titled “FAQ”
Why are only None and High available again after switching providers?
The model catalog is regenerated from provider configuration, so manually added supported_reasoning_levels may be overwritten. Set the supported reasoning levels in the model row on the Codex provider editor page.
Should I add mapped models when adding a third-party Codex proxy?
A comment on one issue suggested not adding mapped models and said cc-switch uses all configured models by default; the maintainer's persistent setup method is to select reasoning levels for the model in the provider editor.
Section titled “Related problems”
Proxy not taking effect; requests go through native codex requests - CodexThe original post has no verifiable solution yet; the issue remains open. Follow Issue #5941 for updates.1 issues mergedAuth conflictLog out of the official Claude login, clear conflicting ANTHROPIC_* variables, set hasCompletedOnboarding to true in ~/.claude.json, and restart the terminal.6 issues mergedAll models mapped to reasoning model (Thinking) value Claude CodeUpgrade CC Switch to v3.13.0 or later to use the fixed proxy-mode model mapping logic.1 issues merged

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