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openclaw - 💡(How to fix) Fix gpt-5.5-pro / gpt-5.4-pro rejected by Codex on ChatGPT Pro subscription

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When using openai-codex/gpt-5.5-pro or openai-codex/gpt-5.4-pro with a ChatGPT Pro ($200/mo) subscription, Codex returns:

Codex error: The 'gpt-5.5-pro' model is not supported when using Codex with a ChatGPT account.

Error Message

Codex error: The 'gpt-5.5-pro' model is not supported when using Codex with a ChatGPT account.

Root Cause

When using openai-codex/gpt-5.5-pro or openai-codex/gpt-5.4-pro with a ChatGPT Pro ($200/mo) subscription, Codex returns:

Codex error: The 'gpt-5.5-pro' model is not supported when using Codex with a ChatGPT account.

Code Example

Codex error: The 'gpt-5.5-pro' model is not supported when using Codex with a ChatGPT account.
RAW_BUFFERClick to expand / collapse

Description

When using openai-codex/gpt-5.5-pro or openai-codex/gpt-5.4-pro with a ChatGPT Pro ($200/mo) subscription, Codex returns:

Codex error: The 'gpt-5.5-pro' model is not supported when using Codex with a ChatGPT account.

Environment

  • OpenClaw version: v2026.5.6
  • Auth mode: OAuth (openai-codex)
  • Account type: ChatGPT Pro ($200/mo)
  • Working models: gpt-5.5, gpt-5.4 (both work fine)
  • Failing models: gpt-5.5-pro, gpt-5.4-pro

Steps to Reproduce

  1. Upgrade ChatGPT subscription to Pro ($200/mo)
  2. Run openclaw onboard --auth-choice codex to refresh OAuth token
  3. Attempt to use model openai-codex/gpt-5.5-pro
  4. Error: "The 'gpt-5.5-pro' model is not supported when using Codex with a ChatGPT account"

Expected Behavior

ChatGPT Pro subscribers should have access to Pro-tier models (-pro suffix) via Codex.

Question

  • Are the -pro model IDs correct? Maybe they have different names under Codex?
  • Does Codex support Pro-tier models at all, or is this a server-side limitation?
  • If supported, what are the correct model IDs?

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#request error#file not found#serialization error#model compatibility#GPU setup

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openclaw - 💡(How to fix) Fix gpt-5.5-pro / gpt-5.4-pro rejected by Codex on ChatGPT Pro subscription