Anthropic API pricing and price changes
15 Anthropic models we price today. Since Mar 26, 2024 we recorded 0 list-price changes on OpenRouter: 0 cuts and 0 increases.
Anthropic models
| Model | Chat answer | In / out per 1M | Released |
|---|---|---|---|
 Claude Haiku 5.5 | 0.07¢$0.66 / 1,000 | $0.10 / $0.50 | Oct 7, 2026 |
Claude Sonnet 5.5 | 1.3¢$12.68 / 1,000 | $2.00 / $10.00 | Sep 28, 2026 |
Claude Opus 5.5 | 2.5¢$25.36 / 1,000 | $4.00 / $20.00 | Sep 22, 2026 |
Claude Fable 5.1 | 6.3¢$63.41 / 1,000 | $10.00 / $50.00 | Sep 1, 2026 |
Claude Opus 5 | 3.3¢$32.78 / 1,000 | $5.00 / $25.00 | Jul 24, 2026 |
Claude Sonnet 5 | 1.3¢$13.11 / 1,000 | $2.00 / $10.00 | Jun 30, 2026 |
Claude Fable 5 | 6.3¢$63.41 / 1,000 | $10.00 / $50.00 | Jun 9, 2026 |
Claude Opus 4.8 | 3.3¢$32.78 / 1,000 | $5.00 / $25.00 | May 27, 2026 |
Claude Opus 4.7 | 3.3¢$32.78 / 1,000 | $5.00 / $25.00 | Apr 16, 2026 |
Claude Sonnet 4.6 | 2.0¢$19.67 / 1,000 | $3.00 / $15.00 | Feb 17, 2026 |
Claude Opus 4.6 | 3.3¢$32.78 / 1,000 | $5.00 / $25.00 | Feb 4, 2026 |
Claude Opus 4.5 | 3.2¢$31.70 / 1,000 | $5.00 / $25.00 | Nov 24, 2025 |
Claude Haiku 4.5 | 0.63¢$6.34 / 1,000 | $1.00 / $5.00 | Oct 15, 2025 |
Claude Sonnet 4.5 | 1.9¢$19.02 / 1,000 | $3.00 / $15.00 | Sep 29, 2025 |
Claude Opus 4.1 | 9.5¢$95.12 / 1,000 | $15.00 / $75.00 | Aug 5, 2025 |
Price change log
Changes of at least 5% in the OpenRouter list price, detected between weekly snapshots (Internet Archive copies of the public model list before October 2026, our daily pulls after). For open-weight models a change can mean a different cheapest host.
No list-price changes recorded.