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Claude Haiku 4.5 vs o3-mini
Comprehensive side-by-side LLM comparison
Claude Haiku 4.5 leads with 9.9% higher average benchmark score. Claude Haiku 4.5 offers 100.0K more tokens in context window than o3-mini. Both models have similar pricing. 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
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
8 months newer
o3-mini
OpenAI
2025-01-30
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
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o3-mini
Input:$1.10
Output:$4.40($0.50 cheaper)
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%(+9.9%)
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o3-mini
Average Score:63.3%
Performance comparison across key benchmark categories
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Claude Haiku 4.5
Coding73.3%(+24.0%)
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o3-mini
Coding49.3%
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Knowledge Cutoff
Training data recency comparison
o3-mini
2023-09-30
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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o3-mini
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Claude Haiku 4.5
Avg Score:73.2%(+9.9%)
Providers:1
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o3-mini
Avg Score:63.3%
Providers:2