github: OpenAI’s GPT-5.1, GPT-5.1-Codex and GPT-5.1-Codex-Mini are now in public preview for GitHub Copilot

GitHub Copilot has begun a public preview rollout of OpenAI’s latest 5.1-series models—GPT-5.1, GPT-5.1-Codex, and GPT-5.1-Codex-Mini—bringing the new general and code-specialized models (including a smaller, low‑cost/low‑latency Codex-Mini) to Copilot users. The announcement was posted on the GitHub Blog.

• Source: GitHub