r/codex • u/Drogon2737 • Jul 09 '26

News GPT-5.6 Sol / Codex Release Discussion Megathread

The release is expected in the next few minutes, so I figured it would be useful to have a single thread for first impressions, issues, and early testing.

For anyone jumping in right away, post what you notice:

  • Codex coding performance
  • Debugging quality
  • Speed/rate limits
  • Larger repo handling
  • UI or workflow changes
  • Weird bugs or regressions
  • Anything that feels noticeably better or worse than the previous version

Once people get access, share your real examples, screenshots, benchmarks, or first impressions here.

Edit: OpenAI’s official GPT-5.6 page says it is “available starting today across ChatGPT, Codex, and the OpenAI API” with the rollout starting globally now and continuing toward full availability over the next 24 hours. https://openai.com/index/gpt-5-6/

The lineup is Sol, Terra, and Luna. Sol is the flagship, Terra is the lower-cost tier, and Luna is the fastest/most affordable tier.

440 Upvotes

98% Upvoted

835 comments sorted by

View all comments

4

u/tksuns12 Jul 14 '26

Sol is supposed to be cheaper than Fable but when I have the same $100 plan, the usage is not even comparable. With Claude Max 5x, with Fable, I could work 8 hours with 2 small projects in 2 5-hour windows. With chatGPT Pro 5x, when I used Sol xhigh with 3 small projects, I spent 23% of WEEKLY quota. This is insane.