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Claude Haiku 4.5 vs GPT-4.5
Comprehensive side-by-side LLM comparison
Claude Haiku 4.5 leads with 12.2% higher average benchmark score. Claude Haiku 4.5 offers 267.9K more tokens in context window than GPT-4.5. Claude Haiku 4.5 is $219.00 cheaper per million tokens. Overall, Claude Haiku 4.5 is the stronger choice for coding tasks.
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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.
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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.
7 months newer
GPT-4.5
OpenAI
2025-02-27
Claude Haiku 4.5
Anthropic
2025-10-15
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Pricing Comparison
Cost per million tokens (USD)
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Claude Haiku 4.5
Input:$1.00
Output:$5.00($219.00 cheaper)
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GPT-4.5
Input:$75.00
Output:$150.00
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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Claude Haiku 4.5
Average Score:76.4%(+12.2%)
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GPT-4.5
Average Score:64.2%
Performance comparison across key benchmark categories
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Claude Haiku 4.5
Coding73.3%(+35.3%)
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GPT-4.5
Coding38.0%
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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 Haiku 4.5
1 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.3ms
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GPT-4.5
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Claude Haiku 4.5
Avg Score:76.4%(+12.2%)
Providers:1
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GPT-4.5
Avg Score:64.2%
Providers:1