OpenAI pricing
The most widely adopted model API, with a wide ladder from nano to frontier models and aggressive discounts for cached input tokens.
List prices checked
Headquartered in US · openai.com
AI models
9 priced model APIs.
| Model | Tier | Input /1M | Output /1M | Blended | Context |
|---|---|---|---|---|---|
| GPT-5 | frontier | $1.25 | $10.00 | $3.44 | 400K |
| OpenAI o3 | frontier | $2.00 | $8.00 | $3.50 | 200K |
| GPT-5 mini | balanced | $0.250 | $2.00 | $0.688 | 400K |
| OpenAI o4-mini | balanced | $1.10 | $4.40 | $1.93 | 200K |
| GPT-4.1 | balanced | $2.00 | $8.00 | $3.50 | 1M |
| GPT-4o | balanced | $2.50 | $10.00 | $4.38 | 128K |
| GPT-5 nano | small | $0.050 | $0.400 | $0.138 | 400K |
| GPT-4o mini | small | $0.150 | $0.600 | $0.262 | 128K |
| GPT-4.1 mini | small | $0.400 | $1.60 | $0.700 | 1M |