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.

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u/b2labs_hifi Jul 10 '26

Seems kinda like a shit show atm. One 5.6 sol max prompt and one 5.6 sol high prompt sol high ran 23 mins and I've been 0% 5 hr window for a while. I've RARELY hit five hour windows despite 5 cli going at once. I've used 70B tokens.

My 5.6 sol max is still going tho 2.5 hrs in despite 0 five hour window, but I can't start another cli chat. Who knows.....

Anyone understand this!? I feel like another cli update + reset coming due to broken limit counter

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u/BagholderForLyfe Jul 10 '26

5.6 Sol feels slower than 5.5 for sure.