Reasoning Effort Levels Not Reflected for OpenAI Models (GPT-5.2-Codex Extra Level Missing) #10068

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1. github-actions

   assigned

   thdxr

   on Jan 22, 2026
2. github-actions

   added

   zenRelates to ZenRelates to Zen

   on Jan 22, 2026
3. github-actions commented on Jan 22, 2026

   

   github-actionsBot

   on Jan 22, 2026 – with GitHub Actions

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   This issue might be a duplicate of existing issues. Please check:

   • Support for reasoning_effort parameter in UI #450: Support for reasoning_effort parameter in UI - Early feature request for reasoning_effort implementation in UI for supported models
   • xhigh not available for GPT-5.2 or GPT-5.2-Codex via Github CoPilot #9818: xhigh not available for GPT-5.2 or GPT-5.2-Codex via Github CoPilot - Reports missing 'xhigh' reasoning level for these models
   • I can’t set the effort when configuring a sub-agent! How can I configure this? #8123: I can't set the effort when configuring a sub-agent! - Addresses the inability to configure reasoning effort/variants for sub-agents
   • No reasoning at all through Github Copilot provider #6864: No reasoning at all through Github Copilot provider - Reports that reasoning/thinking configuration doesn't seem to work with Github Copilot

   Feel free to ignore if your specific case addresses something different from these existing issues.
4. rekram1-node

   closed this as a duplicateof xhigh not available for GPT-5.2 or GPT-5.2-Codex via Github CoPilot #9818 on Jan 22, 2026