OpenAI’s GPT-5.6 Sol, Terra, and Luna are now available in GitHub Copilot
Quick Answer
OpenAI's GPT-5.6 family, featuring Sol, Terra, and Luna models, is now available in GitHub Copilot, catering to various coding needs from complex reasoning to lightweight tasks.
Quick Take
OpenAI's GPT-5.6 family, featuring Sol, Terra, and Luna models, is now available in GitHub Copilot, catering to various coding needs from complex reasoning to lightweight tasks. Sol targets high-complexity projects, Terra serves as a balanced option, and Luna focuses on cost-efficient, smaller tasks. Access varies by subscription tier, with a gradual rollout across multiple platforms.
Key Points
- GPT-5.6 Sol excels in complex reasoning for large codebases.
- Terra serves as a versatile choice for everyday coding tasks.
- Luna is the most cost-efficient option for smaller, faster tasks.
- Models available across various GitHub Copilot subscription tiers.
- Gradual rollout across platforms like Visual Studio and JetBrains.
📖 Reader Mode
~2 min readOpenAI’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. Best for complex reasoning over large codebases and demanding, long-running agentic work.
- GPT-5.6 Terra: The balanced default. A strong all-round choice for everyday interactive and agentic coding.
- GPT-5.6 Luna: A lightweight, cost-efficient variant for smaller, faster tasks and also the lowest-cost option in the family.
These models are billed at provider list pricing under Usage Based Billing. See GitHub Copilot’s pricing for models and requests for details.
Availability in GitHub Copilot
GPT-5.6 Sol will be available to Copilot Pro+, Max, Business, and Enterprise SKUs. GPT-5.6 Terra and GPT-5.6 Luna will be available to Pro, Pro+, Max, Business and Enterprise SKUs.
You’ll be able to select the models in the model picker in:
- Visual Studio Code
- Visual Studio
- Copilot CLI
- GitHub Copilot cloud agent
- GitHub Copilot app
- github.com
- GitHub Mobile iOS and Android
- JetBrains
- Xcode
- Eclipse
Rollout will be gradual. Check back soon if you don’t see it yet.
Enabling access
Copilot Enterprise and Copilot Business plan administrators must enable the policy for the GPT-5.6 models in Copilot settings. The policy is off by default.
Learn more
To explore all models available in GitHub Copilot, see our documentation on models and get started with Copilot.
Join the GitHub Community to share your feedback.
— Originally published at github.blog
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GitHub Copilot app available to all
The GitHub Copilot app is now accessible to all users across every Copilot plan, including Free and Education. Users can sign in with their GitHub accounts to initiate agent-driven development on macOS, Windows, and Linux, with the option to run sessions using their own model provider without a subscription.
