OpenAI
gpt-5.6-luna
openai/gpt-5.6-luna
Price per million tokens
- Input
- $0.253
- Output
- $1.519
- Cache write
- $0.317
- Cache read
- $0.025
What you pay. It is what the tokens cost us to buy plus 20%, and your usage page shows what we paid beside what you paid on every request you send.
Limits
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Images
- supported
What it costs to run
| Workload | Input | Output | Cost | Per 1,000 calls |
|---|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0010 | $1.01 |
| Long document summary | 50,000 | 2,000 | $0.0157 | $15.70 |
| Agent step with tools | 20,000 | 1,500 | $0.0073 | $7.34 |
| 1M in, 1M out | 1,000,000 | 1,000,000 | $1.7724 | $1772.40 |
Calling it
const res = await client.chat.completions.create({ model: "openai/gpt-5.6-luna", messages: [{ role: "user", content: "Hello" }], });