Estimate what a Claude API request actually costs — including prompt caching. Numbers update live as you type.
| Model | Input | Output |
|---|---|---|
| Claude Opus 4.8 | $5.00 | $25.00 |
| Claude Sonnet 5 | $3.00 | $15.00 |
| Claude Haiku 4.5 | $1.00 | $5.00 |
Cache writes: 1.25× base input price (5m TTL) or 2× (1h TTL). Cache reads: ~0.1× base input price. Prices as of 2026-07 — always confirm against platform.claude.com/docs/en/about-claude/pricing before budgeting.