Anthropic: Claude Haiku 5.5

Claude Haiku 5.5 is a paid Anthropic model that accepts text, image, and file inputs. It offers a 1,000,000-token context window and can return up to 128,000 tokens in a single completion, which suits long documents or large multi-file inputs. It supports tool calling and reasoning; structured output support and open-weights status are not specified in the available data. At $0.10 per million input tokens and $0.50 per million output tokens, this model belongs on the shortlist for teams processing high volumes of long-context input where per-token cost matters. Its blended benchmark score of 73.6 rests on a single independent benchmark (AI Index score of 71.6), so its standing is thinly evidenced. Readers should test it on their own workloads before treating that score as a reliable basis for comparison.