Closed SourceAnthropicReleased 2025-10
Claude Haiku 4.5
Anthropic's fastest and most cost-efficient model for high-volume, lightweight tasks
Context window
200K
Input / 1M tokens
$0.80
Output / 1M tokens
$4.00
Provider
Anthropic
Claude Haiku 4.5 is built for volume. When you need thousands of API calls per hour - classification, summarization, routing, form extraction - Haiku delivers Claude-quality output at a fraction of the cost. Response times are sub-second for most tasks, making it suitable for real-time applications.
Strengths
- ✓Lowest latency in the Claude lineup
- ✓Extremely cost-effective at scale
- ✓Strong at classification and extraction
- ✓Good at following structured output schemas
- ✓Handles 200K context at low cost
Best for developers who...
High-volume API pipelinesReal-time classificationForm and document extractionLow-latency chatbots
Benchmarks
| Benchmark | Score | Notes |
|---|---|---|
| MMLU | ~82% | Solid generalist at this price point |
| HumanEval | ~88% | Good coding for the cost |
Source: Anthropic Haiku 4.5 announcement
Tools powered by Claude Haiku 4.5
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