API price
Claude Opus 4.1 API price
By Anthropic. $15.00 per million input tokens, $75.00 per million output tokens on OpenRouter. Collected November 12, 2026.
- $15.00
- $75.00
- 200,000
- —
- August 5, 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 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
- Claude Fable 5$10.00 / $50.00
- Claude Fable 5.1$10.00 / $50.00