GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families. Reasoning.effort supports: none, low, medium (default), high, xhigh, and max.
function_calling| Model | Context | Max out | Pricing |
|---|---|---|---|
| gpt-5.6-luna | 1.1M | 128K | $0.2$1.2 |
| gpt-5.6-terra | 1.1M | 128K | $2$12 |
| gpt-5.6-sol | 1.1M | 128K | $4$20 |
/v1/models/vercel/openai/gpt-5.6-lunaGPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families. Reasoning.effort supports: none, low, medium (default), high, xhigh, and max.