Anthropic announced Claude Haiku 4.5 on Wednesday, the latest version of its compact AI model designed for speed, affordability, and safety. The company says Haiku 4.5 delivers near-frontier-level performance — matching the coding capabilities of Claude Sonnet 4 at one-third the cost and twice the speed.

It’s now available across Anthropic ’s apps, Claude Code, and through Amazon Bedrock and Google Cloud Vertex AI. Pricing is set at $1 per million input tokens and $5 per million output tokens.

Haiku 4.5 is also Anthropic’s safest model yet, according to the company’s internal evaluations. It scored lower on misalignment behaviors than even the flagship Claude Sonnet 4.5 and carries an AI Safety Level 2 classification — a less restrictive rating than the ASL-3 label given to Anthrop

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