OpenAI · model family
GPT Luna models
GPT Luna has 2 versions on record. The first released was GPT-5.6 Luna on 9 Jul 2026, the latest GPT-6 Luna on 22 Sep 2026.
Every released version 2
USD / 1M tokens
| Model | Context window | Input USD / 1M tokens | Output USD / 1M tokens | Status |
|---|---|---|---|---|
GPT-6 LunaOpenAI | 1M | $0.10 | $0.50 | Product update · |
GPT-5.6 LunaOpenAI | 1M | $0.20 | $1.20 | API availability · |
OpenAI