API price
o3 Pro API price
By OpenAI. $20.00 per million input tokens, $80.00 per million output tokens on OpenRouter. Collected November 12, 2026.
- $20.00
- $80.00
- 200,000
- —
- June 10, 2025
- August 22, 2026
Last 90 days
Price changes
No price change in this window.
What the numbers say
- Input costs less than 1% of the 443 paid models we track.
Closest in price
- GPT-5.2 Pro$21.00 / $168.00
- Claude Opus 4.1$15.00 / $75.00
- GPT-5 Pro$15.00 / $120.00
- GPT-5.4 Pro (batch)$15.00 / $90.00
- GPT-5.5 Pro (batch)$15.00 / $90.00
- GPT-5.2 Pro (batch)$10.50 / $84.00