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Anthropic Claude API pricing
What each of Anthropic's 8 live models costs on Anthropic's own API, in US dollars per million tokens: input, output and input read from the prompt cache, plus the higher rate past each long-prompt threshold. These are the published list prices in the models.dev catalog as of October 25, 2026, refreshed daily. The AW Index column is each model's standing on the bench index.
| Model | Input | Output | Cached input | Context | AW Index |
|---|---|---|---|---|---|
Claude Opus 5.5Anthropic · claude-opus-5-5 | $4 | $20 | $0.20 | 1M | 100 |
Claude Sonnet 5.5Anthropic · claude-sonnet-5-5 | $2 | $10 | $0.10 | 1M | 93.5 |
Fable 5.1Anthropic · claude-fable-5-1 | $10 | $50 | $0.25 | 1M | 90.7 |
Claude Opus 5Anthropic · claude-opus-5 | $5 | $25 | $0.50 | 1M | 72.8 |
Fable 5Anthropic · claude-fable-5 | $10 | $50 | $1 | 1M | 72.1 |
Claude Haiku 5.5Anthropic · claude-haiku-5-5 | $0.10† | $0.50† | $0.01 | 1M | 50.5 |
Claude Opus 4.8Anthropic · claude-opus-4-8 | $5 | $25 | $0.50 | 1M | 37.2 |
Claude Sonnet 5Anthropic · claude-sonnet-5 | $2 | $10 | $0.20 | 1M | 27.9 |
† Long prompts cost more: Claude Haiku 5.5 $0.50 / $2.50 over 100K tokens.
What a workload costs on these models, side by side: the cost calculator, filtered to Anthropic.
Quick answers
What is the cheapest Anthropic model on the API?
Claude Haiku 5.5, at $0.10 input / $0.50 output per million tokens, the lowest input and output price of Anthropic's 8 priced models.
What is Anthropic's most expensive model?
Fable 5.1 and Fable 5 share the top output price, $50 per million tokens.
Does Anthropic discount cached input?
Yes. Input read from the prompt cache costs 90% to 98% less than normal input across the 8 models that publish a cached price, from Fable 5.1 (98% off) to Claude Opus 5, Fable 5, Claude Haiku 5.5, Claude Opus 4.8 and Claude Sonnet 5 (90% off).
Does Anthropic charge more for long prompts?
On 1 of its 8 priced models: Claude Haiku 5.5 goes to $0.50 / $2.50 past 100K tokens.
How do Anthropic's prices compare with other labs?
Its cheapest model by output price, Claude Haiku 5.5, ranks 3 of the 39 priced models from every lab on output price. Prices are Anthropic's own list prices from the models.dev catalog as of October 25, 2026; clouds and resellers may charge differently.
Other labs: Google · OpenAI · Meta · xAI · Zhipu AI · Alibaba · MiniMax · Moonshot · Xiaomi · every model in one table · prompt caching prices
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