Claude Sonnet 4.5 Pricing
$3 per 1M input and $15 per 1M output. Free tier: No free tier (API usage billed).
Cost Calculator
Estimated cost:
Full Pricing Matrix
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| Tier | Input | Output | Unit | Cache Read |
|---|---|---|---|---|
| standard | $3 | $15 | /1M tok | $0.3 |
| batch | $1.5 | $7.5 | /1M tok | — |
Price History
2026-09-24
Anthropic lineup completed (+9 models)
About Claude Sonnet 4.5
Sonnet 4 generation at $3/$15.
- Batch API: 50% discount
- Prices per million tokens (MTok) from Claude platform docs
Frequently Asked Questions
How much does Claude Sonnet 4.5 cost?
$3 per 1M input tokens and $15 per 1M output tokens.