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messages.content.type invalid parameter; allowed values ['text'] — Codex

Quick fix

Remove the image capability flag for glm-5.3 and use a text-only model catalog configuration.

Symptom

Section titled “Symptom”
Error output
CC Switch local proxy failed while handling Codex endpoint /responses. Provider: Zhipu GLM; model: glm-5.3; upstream_status: HTTP 400; cause: messages.content.type 参数非法，取值范围 ['text']
English translation

CC Switch local proxy failed while handling Codex endpoint /responses. Provider: Zhipu GLM; model: glm-5.3; upstream_status: HTTP 400; cause: messages.content.type invalid parameter; allowed values ['text']

Cause

Section titled “Cause”

When sending a screenshot to the model while testing Codex, cc-switch marked glm-5.3 as image-capable in its model catalog and therefore sent image content upstream. However, this model endpoint accepts only ['text'], so the upstream returned HTTP 400.

The original post provided a temporary workaround to remove the image capability flag. The maintainer stated that glm-5.3 lacks an exact text-only capability registry entry and planned a fix and regression tests; the comment did not state that a fix had been merged or released.

Fix

Section titled “Fix”

  1. Modify the model catalog: remove the image entry from glm-5.3 input_modalities, then save the modified file as cc-switch-model-catalog-text-only.json.

    cc-switch-model-catalog.json
    "input_modalities": ["text", "image"]
    "input_modalities": ["text"]

  2. Add model_catalog_json = "cc-switch-model-catalog-text-only.json" to the CC configuration so it uses the text-only model catalog.

Affected Versions

Section titled “Affected Versions”
ToolCodex
Versionv3.20.0（受影响）
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”
401 UnauthorizedUpgrade to cc-switch 4.0.x, or clear the stale third-party OPENAI_API_KEY from ~/.codex/auth.json manually, restart Codex, and sign in again with ChatGPT OAuth.2 issues mergedapi failed deserialize json body intoDepending on the error: roll Claude Code back, upgrade cc-switch, turn the local proxy off, or stop sending unsupported fields.8 issues mergedCC Switch online update freezes and becomes unresponsiveCC Switch online update can freeze under FlClash TUN mode. Switch to system proxy mode or manually download and reinstall.2 issues merged

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