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Claude 3.5 Haiku vs GPT-4.5
Comprehensive side-by-side LLM comparison
GPT-4.5 leads with 14.0% higher average benchmark score. Claude 3.5 Haiku offers 267.9K more tokens in context window than GPT-4.5. Claude 3.5 Haiku is $220.20 cheaper per million tokens. GPT-4.5 supports multimodal inputs. Claude 3.5 Haiku is available on 3 providers. Overall, GPT-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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OpenAI
GPT-4.5 was developed as an intermediate advancement between GPT-4 and GPT-5, designed to incorporate incremental improvements in reasoning, factuality, and instruction-following. Built to bridge generational capabilities while maintaining compatibility with existing applications, it represents a refinement of the GPT-4 architecture with enhanced performance characteristics.
4 months newer
Claude 3.5 Haiku
Anthropic
2024-10-22
GPT-4.5
OpenAI
2025-02-27
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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($220.20 cheaper)
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GPT-4.5
Input:$75.00
Output:$150.00
Performance Metrics
Context window and performance specifications
Average performance across 5 common benchmarks
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Claude 3.5 Haiku
Average Score:48.8%
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GPT-4.5
Average Score:62.8%(+14.0%)
Performance comparison across key benchmark categories
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Claude 3.5 Haiku
Coding40.6%(+2.6%)
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GPT-4.5
Coding38.0%
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:48.8%
Providers:3
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GPT-4.5
Avg Score:62.8%(+14.0%)
Providers:1