GPT-6 Luna
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...
The figures
- Made by
- OpenAI
- Model ID
- openai/gpt-6-luna
- Input
- $0.1 per million tokens
- Output
- $0.5 per million tokens
- Context window
- 1.05M tokens
- Longest answer
- 128K tokens
- Takes in
- file, image, text
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 22 Sept 2026
Read on 3 Oct 2026.