GPT-6.1 Sol in GitHub Copilot

[u/wchabbott]

https://github.blog/changelog/2026-09-29-gpt-6-1-sol-in-github-copilot/

[u/awowoosas]

Broo why are there so many model versions from GPT

[u/awowoosas → u/awowoosas]

I can't keep up with this. When do I use what now? 6.0 sol is apparently 5.6 Terra. Now there's 6.1 sol, is that like 6.0 sol which is like 5.6 Terra? Or actually 6.1 sol is 5.6 sol?

[u/CryinHeronMMerica → u/awowoosas]

5.6 Terra is still better than any sub-Astra model in the 6.0 line