OpenAI's GPT-6 Sol and Luna Models Now Available in GitHub Copilot
GitHub Copilot now integrates two new OpenAI GPT-6 models, Sol and Luna, expanding the available options for users alongside the existing GPT-6 Astra. These models offer specialized capabilities, with Sol designed for balanced, agentic coding and Luna providing a lightweight, cost-efficient solution for faster tasks. Availability varies across Copilot Pro, Pro+, Max, Business, and Enterprise plans, with a gradual rollout currently underway. Administrators on Business and Enterprise plans can manage access to these new models.
- →GPT-6 Sol: Balanced Model for Interactive and Agentic Coding
- →GPT-6 Luna: Lightweight and Cost-Efficient for Faster Tasks
- →Availability Across GitHub Copilot Plans and Management Options
Features (2) ›
- GPT-6 Sol: Balanced Model for Interactive and Agentic Coding
GPT-6 Sol is introduced as a balanced model within GitHub Copilot, suitable for interactive and agentic coding workflows. It serves as a strong all-round choice for development tasks that require careful, multistep validation, providing robust assistance to engineers.
- GPT-6 Luna: Lightweight and Cost-Efficient for Faster Tasks
GPT-6 Luna joins the Copilot family as a lightweight, cost-efficient model optimized for smaller, faster tasks. It represents the lowest-cost option in the GPT-6 family, making it ideal for scenarios where rapid, economical assistance is preferred for development activities.
Notes (1) ›
- Availability Across GitHub Copilot Plans and Management Options
GPT-6 Sol is available to Copilot Pro+, Max, Business, and Enterprise plans, while GPT-6 Luna extends to Pro, Pro+, Max, Business, and Enterprise plans. Access is managed through a model picker in various IDEs and GitHub interfaces, with a gradual rollout in progress. Copilot Enterprise and Business plan administrators can control access to these models via policy settings.
https://github.blog/changelog/2026-09-22-openais-gpt-6-sol-and-gpt-6-luna-now-available
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