Copilot Student: GPT-5.3-Codex Removed From Model Picker
GitHub is removing GPT-5.3-Codex from the Copilot Student model picker, though it remains available through auto model selection. Part of reliability measures ahead of usage-based billing.
TL;DR
- GPT-5.3-Codex no longer available in Copilot Student model picker
- Still accessible via auto model selection for optimal performance
- Part of reliability measures ahead of usage-based billing transition
What Changed
- GPT-5.3-Codex removal — No longer selectable in Copilot Student's manual model picker, but auto model selection will still route requests to it when appropriate
Why This Matters
- Auto model selection automatically picks the best model for each task, reducing friction for students who don't need to manually toggle settings
- Keeps the free Student plan performant and sustainable as GitHub prepares for the broader transition to usage-based billing
- Part of temporary reliability measures rolling out across all Copilot Individual plans (Free, Pro, Pro+, and Student)
What You Need to Do
- If you're on Copilot Student, you won't see GPT-5.3-Codex in the model picker anymore — but it's still being used automatically when it's the right tool for the job
- Check the supported models documentation for the full list of available models on your plan
Update: This change is already live as of April 27, 2026. No action required unless you were manually selecting GPT-5.3-Codex.
Source: GitHub Changelog
