Anthropic API pricing
Compare Claude API token prices and prompt caching. Haiku 5.5 has a 1M context window, with higher rates for prompts over 100K tokens.
Anthropic models — price per 1M tokens
All prices in USD. Catalog updated 2026-10-10; model pages show the source-specific verification date. Cheapest reference cost first.
| Model | Input /1M | Output /1M | Cost / call* | Context | Type |
|---|---|---|---|---|---|
| Claude Haiku 5.5 Prompts up to 100K; above 100K, all token rates are 5× higher | $0.100 | $0.500 | $0.0006 | 1M | Fast / cheap |
| Claude Haiku 4.5 Fastest, near-frontier | $1.00 | $5.00 | $0.0060 | 200K | Fast / cheap |
| Claude Sonnet 5.5 Standard rates across 1M context; 5-minute and 1-hour cache writes billed separately | $2.00 | $10.00 | $0.012 | 1M | Balanced |
| Claude Sonnet 4.6 Best speed/intelligence; caching cuts input ~90% | $3.00 | $15.00 | $0.018 | 1M | Balanced |
| Claude Opus 5.5 Standard rates across 1M context; Fast costs 2× and cannot combine with Batch | $4.00 | $20.00 | $0.024 | 1M | Flagship |
| Claude Opus 4.8 Top Opus reasoning/agentic | $5.00 | $25.00 | $0.030 | 1M | Flagship |
| Claude Fable 5.1 Standard rates across 1M context; cache writes billed separately | $10.00 | $50.00 | $0.060 | 1M | Flagship |
| Claude Fable 5 Most capable widely released | $10.00 | $50.00 | $0.060 | 1M | Flagship |
*Reference cost of one call with 1,000 input + 1,000 output tokens — a neutral yardstick. Use the calculator for your real usage. Cheapest row highlighted.
How Anthropic API pricing works
Anthropic bills per token: an input price for everything you send and a higher output price for what the model generates, both quoted per million tokens. To estimate a real bill, multiply by your monthly request volume — the cost calculator does this across every model at once.
Before committing to volume, always confirm the current numbers on the official Anthropic pricing page — the list prices here are verified periodically but the market moves fast.