Anthropic releases Claude Haiku 4.5 — new small model offers improved performance and cost

AI Impact Summary

Anthropic is releasing Claude Haiku 4.5, a new small model offering near-frontier coding performance at a significantly reduced cost and increased speed compared to Claude Sonnet 4.5. This represents a major advancement in AI efficiency, particularly for latency-sensitive applications like chat assistants and pair programming, and opens up new use cases for the Claude API. Users should evaluate this new model for their development workflows to take advantage of its improved performance and cost-effectiveness.