Models · OpenAI · September 2026
GPT-5.6 Luna costs $0.20 in and $1.20 out per million tokens.
GPT-5.6 Luna lists at $0.20 per million input tokens and $1.20 per million output tokens, with cached input at $0.02. Context on this card is 400k tokens. The provider lists a batch API, so the monthly calculator can apply a 50% batch rate. Prices were read from the official OpenAI page in September 2026. Confirm there before you commit spend.
- Input / 1M
- $0.20
- Cached input / 1M
- $0.02
- Output / 1M
- $1.20
- Context
- 400k tokens
- Batch listed
- Yes, 50% in the calculator
Same provider
- GPT-6 Astra $10 / $50
- GPT-5.6 Sol $4 / $20
- GPT-5.6 Terra $2 / $12
Straight answers
What does GPT-5.6 Luna cost?
GPT-5.6 Luna lists at $0.20 per million input tokens and $1.20 per million output tokens, with cached input at $0.02. Context on this card is 400k tokens. The provider lists a batch API, so the monthly calculator can apply a 50% batch rate. Prices were read from the official OpenAI page in September 2026. Confirm there before you commit spend.
Does GPT-5.6 Luna list a batch discount on this card?
Yes. The monthly calculator applies 50% to input and output for GPT-5.6 Luna when batch is checked.