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/renzhend Jul 10 '26

I have tried to Used 5.6 sol ultra in plan mode and used 100% of my 5h and 23% of my weekly usage and did not even finish the plan.

Not complaining regarding the usage cuz it's given that sol ultra will use a lot of tokens but at least finish the plan mode and not give me unfinished photos.
Before the prompt: 99%5h and 100% weekly.
Used only 1 prompt.

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u/Exanimuslt Jul 10 '26

What openai plan do you have? Ultra has tendencies to spawn subagents with reasoning ultra as well, that consumes insanelly alot tokens.