claude-sonnet-4-5 pricing
List price for the claude-sonnet-4-5 API from Anthropic — input cost, output cost, and context window, plus what it actually costs to run across a few common workloads. All figures in USD per 1M tokens.
What claude-sonnet-4-5 costs for typical workloads
Estimated cost per request and per 1,000 requests at claude-sonnet-4-5's list price, for a few representative input/output token mixes. Your real usage will vary with prompt and response length.
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1,000 |
|---|---|---|---|---|
| Short chat turn | 1,000 | 300 | $0.00750 | $7.50 |
| RAG answer | 8,000 | 500 | $0.032 | $31.50 |
| Agent step (tool-heavy) | 20,000 | 2,000 | $0.090 | $90.00 |
| Long-document summary | 100,000 | 1,000 | $0.315 | $315 |
Provider-published list price, USD per 1M tokens, current as of July 2026. Batch, cached-input, and volume discounts are not applied. Verify with Anthropic before relying on these figures for billing.
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