GPT-5.6 Luna
GPT-5.6 Luna by OpenAI: intelligence index 78.8, $0.20 in / $1.20 out per 1M tokens, 1.1M context, with a source on every number.
- Vendor
- OpenAI
- Intelligence index
- 78.8
- Price per 1M tokens
- $0.20 in · $1.20 out
- Context
- 1.1M tokens
- Released
- 2026-07-09