Anthropic

Claude Haiku 4.5

Anthropic's smallest and fastest model in the Claude 4.5 lineup, optimized for low cost, low latency, and real-time responsiveness, while delivering near-frontier performance on coding, agentic workflows, and extended reasoning tasks.

Best for: Real-time chat assistants, customer support, coding automation, sub-agent orchestration, multi-task processing, high-volume deployments where speed and cost efficiency matter.