Claude API Cost Calculator
Enter your expected usage to compare API costs across Claude models. Rates follow the official pricing docs and update automatically with this site's model data.
Example scenarios:
| Model | Rate (in/out, $/MTok) | Per request | Monthly |
|---|---|---|---|
| Claude Haiku 4.5200K | $1 / $5 | $0.0035 | $3.5lowest |
| Claude Sonnet 51M | $2 / $10 | $0.0070 | $7 |
| Claude Opus 5.51M | $4 / $20 | $0.014 | $14 |
| Claude Fable 5.11M | $10 / $50 | $0.035 | $35 |
※ Claude Sonnet 5: $2/$10 표준가 확정 (당초 2026-08-31까지 인트로 가격으로 안내됐으나 인상 철회 — 공식 Pricing 2026-09-02 확인)
※ Claude Opus 5.5: Opus 5($5/$25)보다 20% 낮은 $4/$20. 캐시 읽기 $0.20(입력의 0.05x), 5분 캐시 쓰기 $5·1시간 $8, Batch 50% 할인, Fast mode $8/$40 (공식 모델 문서·발표문 2026-09-27 확인)
How it works
- Costs are in USD: (input tokens × input rate) + (output tokens × output rate). Rates are per million tokens (MTok).
- Rough token guide: English ≈ 4 characters per token; other languages vary. Actual counts depend on content.
- This is a reference estimate at standard rates — prompt caching and batch discounts, and long-context premium rates, are not included. For exact pricing, see the official pricing docs.
- Rates as of: 2026-09-27