Last checked 27 Oct 2026
Anthropic API prices
Anthropic has 4 models in this ledger. Each price is the rate named on the row, copied from that model's official page. If the page does not publish a number, the cell is n/a. Each row keeps its own updated date. ModelMeter does not sell Anthropic access.
Models and prices
| Model | Input | Output | Rate | Context | Max output | Updated | Source |
|---|---|---|---|---|---|---|---|
| Claude Fable 5.1Active | $10.00 | $50.00 | Base input / cache hit / output | 1M | 128k | 27 Oct 2026 | Claude Fable 5.1 Price source |
| Claude Opus 5.5Active | $4.00 | $20.00 | Base input / cache hit / output | 1M | 128k | 27 Oct 2026 | Claude Opus 5.5 Price source |
| Claude Sonnet 5.5Active | $2.00 | $10.00 | Base input / cache hit / output | 1M | 128k | 27 Oct 2026 | Claude Sonnet 5.5 Price source |
| Claude Haiku 5.5Active | $0.10 | $0.50 | Prompts up to 100K tokens | 1M | 128k | 27 Oct 2026 | Claude Haiku 5.5 Price source |
- Claude Fable 5.1Claude Fable 5.1 Price source
Anthropic · Active
- Input
- $10.00
- Output
- $50.00
- Context
- 1M
- Max output
- 128k
Base input / cache hit / output
Updated 27 Oct 2026
- Claude Opus 5.5Claude Opus 5.5 Price source
Anthropic · Active
- Input
- $4.00
- Output
- $20.00
- Context
- 1M
- Max output
- 128k
Base input / cache hit / output
Updated 27 Oct 2026
- Claude Sonnet 5.5Claude Sonnet 5.5 Price source
Anthropic · Active
- Input
- $2.00
- Output
- $10.00
- Context
- 1M
- Max output
- 128k
Base input / cache hit / output
Updated 27 Oct 2026
- Claude Haiku 5.5Claude Haiku 5.5 Price source
Anthropic · Active
- Input
- $0.10
- Output
- $0.50
- Context
- 1M
- Max output
- 128k
Prompts up to 100K tokens
Updated 27 Oct 2026
Same-tier comparisons
These pairs put a Anthropic model next to a model from another provider with a published input rate and output rate in the same tier.
- Claude Fable 5.1 vs GPT-6 Astra · Anthropic and OpenAI
- Claude Haiku 5.5 vs GPT-6 Luna · Anthropic and OpenAI
- Claude Sonnet 5.5 vs Gemini 4 Argon · Anthropic and Google
- Claude Sonnet 5.5 vs GPT-6.1 Sol · Anthropic and OpenAI