GPT-5.6 Luna
A fast, light OpenAI GPT-5.6 model for short requests.
| Model id | gpt-5.6-luna |
| Made by | OpenAI |
| Context window | 400 000 tokens |
| Longest single answer | Not published yet |
| Reads images | Yes |
| Uses document tools | Yes |
| Plans | Light and Pro |
| Price | Included in your plan. Beyond your monthly allowance, billed per use if you turned on overage. |
Strengths
- Quick rewrites and short answers
- Simple formatting and clean-up
- Fast turnaround on small edits
Used for
- Every request you send while it is selected, including the steps the assistant runs in the background for that request (planning, checking its work, summarising the conversation).
Larger and longer requests draw more of your allowance than short ones, whichever model you choose. See Usage.