Anthropic API pricing
List prices for 7 Anthropic models per million tokens, and what 1,000 requests a day cost.
7models
| Model | Input / 1M | Cached / 1M | Output / 1M | Per month | AA Intelligence Index |
|---|---|---|---|---|---|
| Claude Haiku 5.5 | $0.100 | $0.010 | $0.500 | $13.5 | — |
| Claude Sonnet 5 | $2.00 | $0.200 | $10 | $270 | 38.2 |
| Claude Sonnet 5.5 | $2.00 | $0.100 | $10 | $270 | 56.0 |
| Claude Opus 5.5 | $4.00 | $0.200 | $20 | $540 | 57.6 |
| Claude Opus 4.8 | $5.00 | $0.500 | $25 | $675 | 41.8 |
| Claude Opus 5 | $5.00 | $0.500 | $25 | $675 | 50.8 |
| Claude Fable 5 | $10 | $1.00 | $50 | $1,350 | 49.6 |
Per month: 1,000 requests a day, 2,000 input and 500 output tokens each, no caching, 30 days.
Data: real-api-pricing (MIT) · prices as of Oct 16, 2026
Questions
- What is the cheapest Anthropic API model?
- Claude Haiku 5.5 has the lowest list price of the 7 Anthropic models here: $0.100 per 1M input tokens and $0.500 per 1M output tokens. At 1,000 requests a day (2,000 input and 500 output tokens each) that comes to about $13.5 a month.
- Which Anthropic model costs the most?
- Claude Fable 5, at $10 per 1M input tokens and $50 per 1M output tokens: about $1,350 a month for the same workload.
- Is cached input cheaper on Anthropic?
- Yes. On Claude Haiku 5.5, cached input is $0.010 per 1M tokens against $0.100 for fresh input.