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Claude 3.5 Haiku vs Claude Sonnet 4
Comprehensive side-by-side LLM comparison
Claude Sonnet 4 leads with 33.2% higher average benchmark score. Claude 3.5 Haiku offers 72.0K more tokens in context window than Claude Sonnet 4. Claude 3.5 Haiku is $13.20 cheaper per million tokens. Claude Sonnet 4 supports multimodal inputs. Overall, Claude Sonnet 4 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 Sonnet 4 was created as the balanced offering in the Claude 4 family, designed to provide strong intelligence with practical speed and cost efficiency. Built to serve as a versatile workhorse for diverse applications, it balances advanced capabilities with operational considerations for everyday enterprise and consumer use.
7 months newer
Claude 3.5 Haiku
Anthropic
2024-10-22
Claude Sonnet 4
Anthropic
2025-05-22
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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($13.20 cheaper)
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Claude Sonnet 4
Input:$3.00
Output:$15.00
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude 3.5 Haiku
Average Score:39.0%
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Claude Sonnet 4
Average Score:72.2%(+33.2%)
Performance comparison across key benchmark categories
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Claude 3.5 Haiku
Coding40.6%
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Claude Sonnet 4
Coding72.7%(+32.1%)
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:39.0%
Providers:3
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Claude Sonnet 4
Avg Score:72.2%(+33.2%)
Providers:4