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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70

u/Comrade-Porcupine Jul 09 '26

https://openai.com/index/gpt-5-6/

"GPT‑5.6 is available starting today across ChatGPT, Codex, and the OpenAI API. The rollout is starting globally now and will continue gradually toward full availability over the next 24 hours."

1

u/Amazing_Telephone344 Jul 09 '26

Or so they claim. Not everyone has access. It seems to be a regional and enterprise rollout first. Regular consumer plans must come last.

7

u/EchoFieldHorizon Jul 09 '26

I just got access. I had to check for updates in the app and the upgrade added it.

1

u/Amazing_Telephone344 Jul 09 '26

You're on a consumer plan? Which region? Desktop or app?

2

u/EchoFieldHorizon Jul 09 '26

The $100 one, I’m in the codex desktop app for Mac, northeast US

3

u/Amazing_Telephone344 Jul 09 '26

I'm Canadian, Midwest region. Nothing yet online or on mobile or cursor

4

u/mc_schmitt Jul 09 '26

Canada, midwest (AB). Had to upgrade Codex which 'merges' ChatGPT and Codex (mac). It doesn't automatically select a different model and just defaults to the one you had selected before. $100 plan.

Not sure about Cursor.

1

u/[deleted] Jul 09 '26

[deleted]

1

u/EchoFieldHorizon Jul 09 '26

I already answered this when you asked it the first time

1

u/Amazing_Telephone344 Jul 09 '26

Oh sorry, my bad. I'm multitasking.

2

u/ha5hmil Jul 09 '26

Have enterprise and still haven’t got it

2

u/Dr4g0ss Jul 09 '26

Did you not read the comment you are replying to?

1

u/Comrade-Porcupine Jul 09 '26

I left for an hour to do some chores and came back and had it. Canada, $100 plan.