EfficientAnthropic
Claude Haiku 4.5
Context
200K tokens
Pricing
$1/M input, $5/M output
Modalities
text, image, code
Released
Oct 2025
- Overview
- Anthropic's current speed tier, released October 2025. Claude Haiku 4.5 is the fastest and most cost-effective Claude model, built for high-throughput classification, extraction, and real-time chat with a 200K context window.
- Why it matters
- Haiku 4.5 is the model that keeps high-volume Claude workloads economical: at $1/M input tokens it handles the classification, triage, and extraction layers of a production stack while the Sonnet and Opus tiers handle the hard reasoning. For product teams, that split — cheap model on every request, expensive model on demand — is now the standard cost architecture, and Haiku 4.5 is Anthropic's piece of it. It also picked up the workloads stranded when Haiku 3.5 was retired in February 2026, making it the mandatory migration target for legacy Claude speed-tier deployments.
Key strengths
- Fastest, cheapest current Claude model
- 200K context window at the efficient tier
- Vision capability included
- Drop-in successor to the retired Haiku 3.5
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