OpenAI
Trending
current
o3-pro API Pricing
OpenAI reasoning model that uses more compute for difficult, multi-step work.
200K tokens contextVerified Oct 3, 2026Official vendor source
Pricing at a glance
- Input / 1M
- $20
- Cached input / 1M
- Not published
- Output / 1M
- $80
- Status
- current
API cost calculator
What would o3-pro cost your company?
Enter monthly usage in millions of tokens. Results update instantly.
Rate
Standard
Estimated monthly cost
$360
Estimated annual cost
$4,320
Free forever · No credit card · Usage and selected rate are saved automatically.
Token pricing
Published USD rates per one million tokens.
| Scenario | Input | Cached input | Output |
|---|---|---|---|
Standard | $20 | — | $80 |
Capabilities
Text
Image input
Context window: 200K tokens. Availability and rate limits can depend on account tier and region.