Upcoming deprecation of Gemini 3 Pro and GPT-5.1 models
Published: (March 2, 2026 at 03:47 PM EST)
2 min read
Source: GitHub Changelog
Source: GitHub Changelog
Deprecation Schedule
| Model | Deprecation date | Suggested alternative |
|---|---|---|
| Gemini 3 Pro | 2026-03-26 | Gemini 3.1 Pro |
| GPT-5.1 | 2026-04-01 | GPT-5.3-Codex |
| GPT-5.1-Codex | 2026-04-01 | GPT-5.3-Codex |
| GPT-5.1-Codex-Mini | 2026-04-01 | GPT-5.3-Codex |
| GPT-5.1-Codex-Max | 2026-04-01 | GPT-5.3-Codex |
The Gemini 3 Pro deprecation date is accelerated due to provider deprecation.
Migration Guidance
- Update your workflows and integrations to use supported models before the listed dates.
- Copilot Enterprise administrators may need to enable access to alternative models through their model policies in Copilot settings.
- Verify availability by checking your individual Copilot settings and confirming that the policy is enabled for the specific model.
- Once enabled, the model will appear in the Copilot Chat model selector in VS Code and on github.com.
- No action is required to remove the models once they have been deprecated.
GitHub Enterprise customers with questions or concerns are encouraged to reach out to their account manager for further assistance.
Additional Resources
- Learn more about the models available in Copilot in the documentation on models.
- Join the GitHub Community to share your feedback.