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Claude 3.5 Haiku vs Claude Haiku 4.5
Comprehensive side-by-side LLM comparison
Claude Haiku 4.5 leads with 32.1% higher average benchmark score. Claude 3.5 Haiku is $1.20 cheaper per million tokens. Claude Haiku 4.5 supports multimodal inputs. Claude 3.5 Haiku is available on 3 providers. Overall, Claude Haiku 4.5 is the stronger choice for coding tasks.
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Anthropic
Claude 3.5 Haiku was developed as the next generation of Anthropic's fastest model, offering similar speed to Claude 3 Haiku while surpassing Claude 3 Opus on many intelligence benchmarks. Built with low latency, improved instruction following, and accurate tool use, it serves user-facing products, specialized sub-agent tasks, and data-heavy applications.
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Anthropic
Claude Haiku 4.5 continues Anthropic's tradition of fast, efficient models in the fourth generation Claude family. Designed to maintain the hallmark speed and cost-effectiveness of the Haiku line while incorporating advancements from the Claude 4 series, it serves applications requiring rapid processing and quick turnaround times.
11 months newer
Claude 3.5 Haiku
Anthropic
2024-10-22
Claude Haiku 4.5
Anthropic
2025-10-15
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Pricing Comparison
Cost per million tokens (USD)
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Claude 3.5 Haiku
Input:$0.80
Output:$4.00($1.20 cheaper)
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Claude Haiku 4.5
Input:$1.00
Output:$5.00
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude 3.5 Haiku
Average Score:41.1%
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Claude Haiku 4.5
Average Score:73.2%(+32.1%)
Performance comparison across key benchmark categories
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Claude 3.5 Haiku
Coding40.6%
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Claude Haiku 4.5
Coding73.3%(+32.7%)
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Knowledge Cutoff
Training data recency comparison
Claude Haiku 4.5
2025-02-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude 3.5 Haiku
3 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.3ms
Bedrock
Throughput: 104 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
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Claude 3.5 Haiku
Avg Score:41.1%
Providers:3
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Claude Haiku 4.5
Avg Score:73.2%(+32.1%)
Providers:1