Add reasoning effort parameter to chat/completions endpoint

[exedev-shelley]

Author: nhkhang
Channel: #shelley
Link: https://discord.com/channels/1405685085923049482/1450334528210993295/1499832846989263130

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Description

Add support for the reasoning_effort parameter to the chat/completions endpoint.

Context

This request follows up on recent work with OpenAI's reasoning API. The official OpenAI documentation includes reasoning effort as a configurable parameter for reasoning-enabled models.

Reference

• OpenAI Reasoning API docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-summaries

[exedev-shelley]

🔍 Potential duplicates found:

• Custom models: let me bump reasoning effort beyond "medium" (high / xhigh) #188: Both issues request the ability to configure reasoning_effort as a parameter. Issue Custom models: let me bump reasoning effort beyond "medium" (high / xhigh) #188 specifically addresses it being hardcoded as 'medium' for custom models, while Add reasoning effort parameter to chat/completions endpoint #194 requests adding it to the chat/completions endpoint. These are the same feature request.

This is an automated check. Please review and close as duplicate if appropriate.