OpenAI API pricing
5 models from OpenAI, verified 2026-08-29. Official pricing page →
Models and prices
| Model | Tier | Context | $/1M in | $/1M out | $/1M cache read |
|---|---|---|---|---|---|
| GPT-5.6 Sol | Flagship | 1.05M | $4.00 | $20.00 | $0.40 |
| GPT-5.6 Cyber | Reasoning | 400K | $12.50 | $75.00 | $1.25 |
| o4-mini | Reasoning | 200K | $1.10 | $4.40 | $0.275 |
| GPT-5.6 Terra | Mid | 1.05M | $2.00 | $12.00 | $0.20 |
| GPT-5.6 Luna | Small | 1.05M | $0.20 | $1.20 | $0.02 |