OpenAI upgrading ChatGPT and Codex with two more GPT-6 models
Earlier this month, OpenAI released the first GPT-6 model with Astra. OpenAI upgrading ChatGPT and Codex with two more GPT-6 models
By Dillip Chowdary • Sep 22, 2026 • Source: 9to5Mac
What shipped in OpenAI upgrading ChatGPT and Codex with two
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9to5Mac reports: OpenAI upgrading ChatGPT and Codex with two more GPT-6 models. Earlier this month, OpenAI released the first GPT-6 model with Astra. Now GPT-6 is expanding with new GPT-6 Sol and GPT-6 Luna models. <a class="more-link" href="https://9to5mac.com/2026/09/22/openai-
What you gain from OpenAI upgrading ChatGPT and Codex with two
For primary quotes and complete technical detail, see 9to5Mac's original report linked above.
Developer Action Items
- ☐ Diff the official changelog for OpenAI / ChatGPT / Codex before you bump — APIs, defaults, and removed flags only.
- ☐ Install through the vendor's documented channel in staging; keep a one-command rollback and time-box the canary.
- ☐ Grep your repo for old flag names, lockfile pins, and plugin versions that the notes mark as breaking.
- ☐ Prefer the first patch cut over the day-zero tag unless you have a reason to be on the leading edge.
- ☐ If 9to5Mac did not name a region, plan, or SKU, screenshot the official availability line before you promise it to users.
Author
Dillip Chowdary
Writes Tech Bytes coverage of AI, engineering, and the tools that actually ship. Editor of Tech Pulse Daily.
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