Anthropic Releases Claude Haiku 5.5, Operating Costs Reduced by Approximately 75%

Anthropic released Claude Haiku 5.5 on Wednesday, calling it the company's cheapest, fastest, and most capable small model to date. This model is suitable for high-volume tasks such as document summarization and database queries, as well as speed-sensitive scenarios like real-time customer service and user operations in browsers. When developers integrate it, prompts of up to 100,000 tokens are charged at $0.10 per million input tokens and $0.50 per million output tokens, consistent with the pricing of OpenAI's GPT-6 Luna released on September 22. The corresponding prices for Haiku 4.5 were $1.00 and $5.00, making the new prices 90% lower, with a 50% reduction for prompts exceeding 100,000 tokens. Since about 90% of requests for the old model fell below this threshold, and Haiku 5.5 has slightly more tokens, Anthropic estimates an average savings of approximately 75%. Benchmark tests showed that Haiku 5.5 achieved a success rate of 72.4% on OSWorld 2.1, higher than GPT Luna's 48.9%; on Terminal-Bench 4, it scored 39.2%, surpassing Luna's 16.4% and Haiku 4.5's 0%, but lower than Sonnet 5.5's 70.6%. This is the first Haiku model with adjustable effort settings, allowing users to balance cost and answer quality.

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