# GPT-6 Sol and GPT-6 Luna are generally available in GitHub Copilot

GitHub Copilot now generally offers two additional OpenAIDevs GPT-6 models: GPT-6 Sol for interactive and agentic coding, and GPT-6 Luna, which GitHub calls a lightweight, lowest-cost option for smaller tasks.

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Source: GitHub · Published 9/22/2026, 11:57:57

GPT-6 Sol and GPT-6 Luna, two additional models in the OpenAIDevs GPT-6 family, are generally available in GitHub Copilot. They can be used in the GitHub Copilot app and in code. GitHub records the change in its [changelog entry for GPT-6 Sol and GPT-6 Luna](https://github.blog/changelog/2026-09-22-openais-gpt-6-sol-and-gpt-6-luna-now-available/).

GitHub describes GPT-6 Sol as the balanced model for interactive and agentic coding, and GPT-6 Luna as a lightweight, cost-efficient model for smaller tasks and the lowest-cost option in the family.

Tags: GitHub Copilot, GPT-6, OpenAIDevs, General availability

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