GitHub Makes GPT-6 Astra Generally Available in Copilot

GitHub announced that GPT-6 Astra from OpenAI is now generally available in GitHub Copilot. The model targets long-horizon autonomous coding and agentic tasks. GitHub reports that its internal tests show the model plans and validates steps as it works, batches diagnosis with verification, and confirms its own results before declaring a task complete. A video attachment displays the Copilot interface with sidebar navigation. The linked GitHub changelog post states the same availability and repeats the description of the model's intended use for extended coding projects.