Claude Haiku 4.5

Fast, affordable small model matching Sonnet 4 coding performance

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Claude Haiku 4.5 is Anthropic's fastest and most cost-efficient small language model, delivering coding performance on par with Claude Sonnet 4 while running 2x faster and at one-third the cost. It is designed for developers and businesses needing high-throughput, low-latency AI capabilities at scale. Its combination of speed, affordability, and strong coding ability makes it well-suited for production applications with high request volumes.

At a glance

Company
Anthropic
Pricing
usage-based
API available
Yes
Self-hostable
No
Launched
2025-10
Last verified
2026-05-11

Capabilities

long-contextcode-generationlow-latencyapi-accessmulti-turn-conversation

Categories

codedeveloper-platformschat-assistants

Alternatives

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