OpenRouter · Vercel · CC BY 4.0
Arena · CC BY 4.0
Usage › GPT-5.6 Luna
OpenAI · LLM
An LLM from OpenAI, released Jul 9, 2026. It’s #5 in usage over the last 7 days and isn’t in the performance ranking (Arena top) yet.
| Performance rank | Not ranked |
| Usage rank | #5 · 6.96T tokens |
| Output price | $1.2 per 1M tokens |
| Input price | $0.2 per 1M tokens |
| Context length | 1.05M tokens |
| Released | Jul 9, 2026 |
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Source: OpenRouter (usage Sep 25 – Oct 1 · prices), Arena (performance · quality) · CC BY 4.0. Prices are converted at fixed exchange rates.