← ChatGPT & Codex changelog
ChatGPT — September 22, 2026
This release brings interactive flashcards, allowing the creation, practice, and saving of learning content across all ChatGPT plans on mobile and web. The availability of new GPT-6 Sol and GPT-6 Luna models within ChatGPT Work and Codex is also a key update, distinct from the models in Chat. For Codex desktop users, the manual model selection now persists, and available models and reasoning options remain dependent on plan and workspace settings.
Changed
- GPT-6 Sol and Luna in Work and Codex
- We’re introducing GPT-6 Sol and GPT-6 Luna in ChatGPT Work and Codex. These models are separate from the models available in Chat.
- Codex desktop keeps the model you selected manually.
- Available models and reasoning effort options depend on your plan and workspace settings.
- Learn more about ChatGPT Work and Codex.
- Create flashcards in ChatGPT
- You can now create interactive flashcards in ChatGPT. Ask for flashcards on a topic you want to learn, or upload your notes and ask ChatGPT to turn them into flashcards.
- Tap a card to flip it, then select ✔️ if you know the answer or ❌ to practice it again later. Shuffle your cards to practice in a different order.
- Flashcards are automatically saved in your library. To practice again, open them there or ask ChatGPT to review them back.
- Available on mobile and web for all ChatGPT plans.