Claude Haiku 5.5

Anthropic: Claude Haiku 5.5, Wednesday, October 7, 2026, Claude API (claude-haiku-5-5), Claude.ai, Claude Code, Amazon Bedrock, Google Cloud, GitHub Copilot. Ended.

New small model with a 1-million-token context window and 128K max output tokens. First Haiku with an effort setting (low through max). $0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100,000 tokens; prompts above that are billed at $0.50 and $2.50 for the whole request.