Claude Haiku 4.5
Our fastest model, a lightweight version of our most powerful AI, at a more affordable price
Claude Haiku 4.5 is Anthropic's small, fast Claude model release announced on Oct. 15, 2025, offering near-frontier coding, computer-use, agentic workflow, chat-assistant, and low-latency language-model capabilities via Claude apps, Claude Code, and the Claude API.
Pricing
Base input: $1/MTok; output: $5/MTok. Prompt caching: 5m cache writes $1.25/MTok, 1h cache writes $2/MTok, cache hits & refreshes $0.10/MTok.
Anthropic's official Claude Platform pricing page explicitly lists Claude Haiku 4.5 at $1 per million base input tokens and $5 per million output tokens, with prompt caching prices also listed. The page states all prices are in USD and MTok means million tokens.