OpenAI API Pricing
Short answer
OpenAI's direct API offers the GPT-5.5 family with standard, cached-input, batch, flex, and long-context pricing tiers.
| Model | Input /1M | Output /1M | Cached in /1M | Context |
|---|---|---|---|---|
 GPT-5.5 Official API | $5.00 | $30.00 | $0.50 | 1,050,000 |
| GPT-5.5 Pro Official API | $30.00 | $180.00 | — | 1,050,000 |
| GPT-5.4 Official API | $2.50 | $15.00 | $0.25 | 1,050,000 |
| GPT-5.4 mini Official API | $0.75 | $4.50 | $0.075 | 400,000 |
| GPT-5.4 nano Official API | $0.20 | $1.25 | $0.02 | 400,000 |
| GPT-5.3-Codex Official API | $1.75 | $14.00 | $0.175 | 400,000 |
| GPT-Image-2 Official API | — | — | — | 1024² Low/Med/High quality |
| GPT Image 1.5 Official API | — | — | — | 1024² / 1024×1536, Low/Med/High quality |
| GPT Image 1 Mini Official API | — | — | — | 1024² Low/Med/High quality |
| Sora 2 Official API | — | — | — | 720p (std) / up to 1080p (Pro), ~4-20s |