Per MillionLLM API prices, tracked daily

claude-sonnet-5-5 API Pricing

claude-sonnet-5-5 on Anthropic costs $2.00 per 1M input tokens and $10.00 per 1M output tokens (as of ).

claude-sonnet-5-5 API Pricing. Source: the LiteLLM price list (MIT License)
Input$2.00 / 1M tokens
Output$10.00 / 1M tokens
Cached input (read)$0.10
Cache write$2.50
Batch input / output$1.00 / $5.00
Above 200K tokens (input / output)—
Context window1M tokens
Max output128K tokens
Supportsvision, tool calling, reasoning, prompt caching
Deprecation dateNone listed
API model idclaude-sonnet-5-5
In our records since

What it costs for common jobs

Estimated from the list price above (no caching or batch discount).

What it costs for common jobs. Source: the LiteLLM price list (MIT License)
JobEstimated cost
1,000 chat replies (2,000 tokens in, 500 out each)$9.00
Summarising 100 long documents (50,000 in, 1,000 out each)$11.00
1 million classification calls (300 in, 5 out each)$650.00

Try your own numbers in the LLM API cost calculator.

Price history

Similarly priced models

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Similarly priced models. Source: the LiteLLM price list (MIT License)
ModelProviderInput / 1MOutput / 1MCached input / 1MContext
claude-sonnet-5Anthropic$2.00$10.00$0.201M
claude-haiku-4-5Anthropic$1.00$5.00$0.10200K
claude-sonnet-4-5Anthropic$3.00$15.00$0.30200K
claude-sonnet-4-6Anthropic$3.00$15.00$0.301M
claude-haiku-5-5Anthropic$0.10$0.50$0.011M
claude-opus-5-5Anthropic$4.00$20.00$0.201M
claude-opus-4-5Anthropic$5.00$25.00$0.50200K
claude-opus-4-6Anthropic$5.00$25.00$0.501M