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Published
1 month ago
•
openai
openai
'none' value for model_reasoning_summary rejected despite documentation stating it's valid
What version of Codex is running?
0.25.0
Which model were you using?
gpt-5
What platform is your computer?
Windows 11, WSL2.0
What steps can reproduce the bug?
Environment
- Operating System: Windows 10 with WSL2 (Ubuntu or similar Linux distro inside WSL).
- Codex CLI Version: 0.25.0 (research preview).
- Model: gpt-5.
- Provider: openai.
- Authentication: Using OpenAI Teams membership.
Steps to Reproduce
- Install Codex CLI v0.25.0.
- Authenticate using an OpenAI Teams membership.
- Run the following command in WSL2:
codex exec --full-auto \ --config model_reasoning_effort="minimal" \ --config model_reasoning_summary="none" \ "list the files in the current directory" - Observe the error after retries.
Expected Behavior
The command should execute successfully, as the documentation in https://github.com/openai/codex/blob/main/docs/config.md#model_reasoning_summary explicitly states that "none" is a valid value for model_reasoning_summary. (The docs indicate supported values include 'none' alongside others like 'concise', 'detailed', etc.)
Actual Behavior
The CLI rejects "none" as an invalid value for the reasoning.summary parameter, resulting in a 400 Bad Request error from the API. It retries 5 times before failing. The inline CLI output shows "reasoning summaries: none" being set, but the API call fails with the error message: "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'."
This suggests a mismatch between the CLI's config handling/docs and the backend API validation.
Error Logs
[2025-08-28T14:00:55] OpenAI Codex v0.25.0 (research preview)
--------
workdir: /mnt/c/code/etc
model: gpt-5
provider: openai
approval: never
sandbox: workspace-write [workdir, /tmp, $TMPDIR]
reasoning effort: minimal
reasoning summaries: none
--------
[2025-08-28T14:00:55] User instructions:
list the files in the current directory
[2025-08-28T14:00:58] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "invalid_value"
}
}; retrying 1/5 in 206ms…
[2025-08-28T14:00:59] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "invalid_value"
}
}; retrying 2/5 in 389ms…
[2025-08-28T14:01:00] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "invalid_value"
}
}; retrying 3/5 in 778ms…
[2025-08-28T14:01:02] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "invalid_value"
}
}; retrying 4/5 in 1.737s…
[2025-08-28T14:01:05] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "invalid_value"
}
}; retrying 5/5 in 3.125s…
[2025-08-28T14:01:09] ERROR: unexpected status 400 Bad Request: {
"error": {
"message": "Invalid value: 'none'. Supported values are: 'concise', 'detailed', and 'auto'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "invalid_value"
}
}
Thanks for looking into this! Let me know if you need any further info.
What is the expected behavior?
No response
What do you see instead?
No response
Additional information
No response
I'm having the same issue. It seems the the configuration variable only works with detailed and auto. I tried it with concise, and same issue occurs. See below:
[2025-09-04T19:49:06] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Unsupported value: 'concise' is not supported with the 'gpt-5-2025-08-07' model. Supported values are: 'detailed'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "unsupported_value"
}
}; retrying 1/5 in 197ms…
[2025-09-04T19:49:07] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Unsupported value: 'concise' is not supported with the 'gpt-5-2025-08-07' model. Supported values are: 'detailed'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "unsupported_value"
}
}; retrying 2/5 in 407ms…
[2025-09-04T19:49:08] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Unsupported value: 'concise' is not supported with the 'gpt-5-2025-08-07' model. Supported values are: 'detailed'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "unsupported_value"
}
}; retrying 3/5 in 829ms…
[2025-09-04T19:49:10] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Unsupported value: 'concise' is not supported with the 'gpt-5-2025-08-07' model. Supported values are: 'detailed'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "unsupported_value"
}
}; retrying 4/5 in 1.484s…
[2025-09-04T19:49:12] stream error: unexpected status 400 Bad Request: {
"error": {
"message": "Unsupported value: 'concise' is not supported with the 'gpt-5-2025-08-07' model. Supported values are: 'detailed'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "unsupported_value"
}
}; retrying 5/5 in 3.093s…
[2025-09-04T19:49:15] ERROR: unexpected status 400 Bad Request: {
"error": {
"message": "Unsupported value: 'concise' is not supported with the 'gpt-5-2025-08-07' model. Supported values are: 'detailed'.",
"type": "invalid_request_error",
"param": "reasoning.summary",
"code": "unsupported_value"
}
}
