For code completion, it uses an improved version of Codex[1], and for chat beta (part of Copilot X), it uses 3.5-turbo[2]. [1]: https://github.blog/2023-07-28-

For code completion, it uses an improved version of Codex[1], and for chat beta (part of Copilot X), it uses 3.5-turbo[2]. [1]: https://github.blog/2023-07-28-smarter-more-efficient-coding-github-copilot-goes-beyond-codex-with-improved-ai-model/ https://github.blog/2023-07-28-smarter-more-efficient-coding... [2]: https://github.com/orgs/community/discussions/56975#discussioncomment-6086471 https://github.com/orgs/community/discussions/56975#discussi...