Claude Haiku 4.5 — reviews, specs & pricing

Anthropic's fast, low-cost model.

Summary

Claude Haiku 4.5 is optimized for speed and affordability while retaining solid reasoning ability inherited from the Claude 4 family. It supports a 200k context window. It's suited for latency-sensitive, high-volume tasks.

Sample use case

Used for chat support, content moderation, and lightweight agent tasks. Ideal where response time and cost matter more than peak capability.

Specifications

  • Provider: anthropic
  • License: closed
  • Context: 200k tokens
  • Input price: $1/M tok
  • Output price: $5/M tok
  • Released: 2025-10-15

Pros

  • Low latency
  • Affordable
  • Vision support

Cons

  • Lower ceiling than Sonnet/Opus
  • Closed weights
  • Less suited for deep reasoning

Average rating 0.0 from 0 community reviews on Reviuws.

Frequently asked questions

What is Claude Haiku 4.5?

Claude Haiku 4.5 is optimized for speed and affordability while retaining solid reasoning ability inherited from the Claude 4 family. It supports a 200k context window. It's suited for latency-sensitive, high-volume tasks.

How much does Claude Haiku 4.5 cost?

Claude Haiku 4.5 costs $1 per million input tokens and $5 per million output tokens.

Is Claude Haiku 4.5 open source?

Claude Haiku 4.5 is released under the closed license.