The following tools cannot be used with reasoning.effort 'minimal': web_search."

Resolved 💬 0 comments Opened Sep 13, 2025 by ErvisTusha Closed Dec 1, 2025

What version of Codex is running?

0.34.0

Which model were you using?

🧠 Model
• Name: gpt-5
• Provider: OpenAI
• Reasoning Effort: Minimal
• Reasoning Summaries: Auto

💻 Client
• CLI Version: 0.34.0

What platform is your computer?

windows 11

What steps can reproduce the bug?

▌hi

⚠️ stream error: unexpected status 400 Bad Request: {
"error": {
"message": "The following tools cannot be used with reasoning.effort 'minimal': web_search.",
"type": "invalid_request_error",
"param": "tools",
"code": null
}
}; retrying 1/5 in 217ms…

⚠️ stream error: unexpected status 400 Bad Request: {
"error": {
"message": "The following tools cannot be used with reasoning.effort 'minimal': web_search.",
"type": "invalid_request_error",
"param": "tools",
"code": null
}
}; retrying 2/5 in 394ms…

⚠️ stream error: unexpected status 400 Bad Request: {
"error": {
"type": "invalid_request_error",
"param": "tools",
"code": null
}
}; retrying 3/5 in 721ms…

⚠️ stream error: unexpected status 400 Bad Request: {
"error": {
"message": "The following tools cannot be used with reasoning.effort 'minimal': web_search.",
"type": "invalid_request_error",
"param": "tools",
"code": null
}
}; retrying 4/5 in 1.591s…

⚠️ stream error: unexpected status 400 Bad Request: {
"error": {
"message": "The following tools cannot be used with reasoning.effort 'minimal': web_search.",
"type": "invalid_request_error",
"param": "tools",
"code": null

🖐  unexpected status 400 Bad Request: {
"error": {
"message": "The following tools cannot be used with reasoning.effort 'minimal': web_search.",
"type": "invalid_request_error",
"param": "tools",
"code": null
}
}

What is the expected behavior?

_No response_

What do you see instead?

_No response_

Additional information

_No response_

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