OpenAI’s GPT-5.6 Sol, Terra, and Luna are now available in GitHub Copilot
UpdateVerifiedAdded Sep 22, 2026
OpenAI’s GPT-5.6 family is now rolling out in GitHub Copilot. GPT-5.6 comes in three variants, Sol, Terra, and Luna, so you can match the model to the job, whether that’s reasoning over a large codebase, everyday agentic coding, or fast, cost-efficient assistance. GPT-5.6 Sol: The highest reasoning ceiling in the family.
Topics: AI agents, LLMs, Governance, Pricing, Developer tools
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More GitHub Copilot releases
Every GitHub Copilot release| Date | Release | Type |
|---|---|---|
| Jul 9 | Ask Copilot for a repository overview Update | Update |
| Jul 10 | Agentic autofix for code scanning alerts in public preview Preview | Preview |
| Jul 10 | GitHub Mobile: Improved filters and sorting for Copilot sessions Update | Update |
| Jul 8 | Enterprise-managed OpenTelemetry export for VS Code and CLI Update | Update |
| Jul 8 | Deploy managed Copilot settings via MDM in VS Code and CLI GA | GA |
| Jul 8 | GitHub Copilot in Visual Studio Code, June 2026 releases GA | GA |
| Jul 8 | GitHub Mobile: Fix merge conflicts with Copilot cloud agent Update | Update |
| Jul 8 | GitHub Mobile: Live notifications for Copilot CLI sessions Update | Update |
