Claude Haiku 4.5

by Anthropic

Claude 4 family

Parameters

—

Context window

200K tokens

Released

2025-10-01

Input price / 1M tok

$0.80

Output price / 1M tok

$4.00

Modality

multimodal, vision, tools

About Claude Haiku 4.5

Anthropic's small-and-fast tier. Sub-second first token, ~4x cheaper than Sonnet, still 200K context and vision. Best for classification, routing, and high-QPS extraction where you need Claude quality without Sonnet economics.

Strengths

Very fast, very cheap
Full 200K context
Vision included
Same JSON tool-use API as bigger tiers

Weaknesses

Weaker at multi-step reasoning
Not a code-generation model
Occasional shallow refusals

Best for

ClassificationData extractionHigh-QPS chat routingRealtime moderation

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