Anthropic API pricing — every model compared
Last verified
Every Anthropic model with current API pricing, in dollars per million tokens. Verified against Anthropic's own documentation and dated.
All Anthropic models
| Model | Input | Output | Cached in | Out:in |
|---|---|---|---|---|
| Claude Haiku 3.5 (retired) | $0.80 | $4.00 | $0.08 | 5.0× |
| Claude Haiku 4.5 | $1.00 | $5.00 | $0.10 | 5.0× |
| Claude Sonnet 5 | $2.00 | $10.00 | $0.20 | 5.0× |
| Claude Sonnet 4.6 | $3.00 | $15.00 | $0.30 | 5.0× |
| Claude Sonnet 4.5 | $3.00 | $15.00 | $0.30 | 5.0× |
| Claude Opus 5 | $5.00 | $25.00 | $0.50 | 5.0× |
| Claude Opus 4.8 | $5.00 | $25.00 | $0.50 | 5.0× |
| Claude Opus 4.7 | $5.00 | $25.00 | $0.50 | 5.0× |
| Claude Opus 4.6 | $5.00 | $25.00 | $0.50 | 5.0× |
| Claude Opus 4.5 | $5.00 | $25.00 | $0.50 | 5.0× |
| Claude Fable 5 | $10.00 | $50.00 | $1.00 | 5.0× |
| Claude Opus 4.1 (deprecated) | $15.00 | $75.00 | $1.50 | 5.0× |
The spread
Across Anthropic's current models, input pricing runs from $1.00 (Claude Haiku 4.5) to $10.00 (Claude Fable 5) per million tokens — a 10× range.
That range is the whole reason model selection matters more than prompt golfing. Moving a workload down a tier, where quality allows, changes the bill by a multiple. Shortening a prompt changes it by a percentage.
Reading these numbers
- Output costs more than input on every model here — 5.0× to 5.0×. A workload that generates a lot is priced very differently from one that reads a lot.
- Cached input is the biggest discount available. If your prompts share a stable prefix, structuring for cache hits is worth more than any model change short of a tier drop.
- Token counts are not comparable across providers. Each tokenizes differently, so the same text is a different number of tokens on Anthropic than elsewhere. Cross-provider price comparisons carry a margin of error.
Getting your actual spend
These are list prices. For what you are really being billed, read Anthropic's billing API — an admin key is what that takes.
Source
Verified against Anthropic's pricing documentation. Each model page carries its own verification date.