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Claude Haiku 4.5 vs o1-preview
Comprehensive side-by-side LLM comparison
Claude Haiku 4.5 leads with 15.9% higher average benchmark score. Claude Haiku 4.5 offers 239.2K more tokens in context window than o1-preview. Claude Haiku 4.5 is $69.00 cheaper per million tokens. Claude Haiku 4.5 supports multimodal inputs. 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
o1-preview was introduced as an early version of OpenAI's reasoning model series, designed to demonstrate the potential of AI models that engage in extended thinking before responding. Built to solve complex problems through deliberate reasoning processes, it represented an initial step toward more thoughtful and analytical AI systems.
1 year newer
o1-preview
OpenAI
2024-09-12
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($69.00 cheaper)
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o1-preview
Input:$15.00
Output:$60.00
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude Haiku 4.5
Average Score:73.2%(+15.9%)
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o1-preview
Average Score:57.3%
Performance comparison across key benchmark categories
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Claude Haiku 4.5
Coding73.3%(+32.0%)
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o1-preview
Coding41.3%
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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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o1-preview
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Claude Haiku 4.5
Avg Score:73.2%(+15.9%)
Providers:1
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o1-preview
Avg Score:57.3%
Providers:2