GPT-6 Luna
language modelOpenAI
GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...
Key facts
| Made by | OpenAI |
|---|---|
| Type | language model |
| Released | September 22, 2026 |
| Reads at once | 1,050,000 tokens |
| Price (API, per million tokens) | $0.1 in · $0.5 out |
| Input → output | file, image, text → text |
Questions about GPT-6 Luna
Who makes GPT-6 Luna?
GPT-6 Luna is made by OpenAI.
When was GPT-6 Luna released?
We first saw GPT-6 Luna listed on September 22, 2026.
How much does GPT-6 Luna cost?
Through OpenRouter it costs $0.1 per million input tokens and $0.5 per million output tokens. Prices change, so check the provider before you build on it.
How much text can GPT-6 Luna read at once?
Up to 1,050,000 tokens, roughly 787.5K words.
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