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Claude 3.5 Haiku vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 35.1% higher average benchmark score. Claude 3.5 Haiku offers 100.0K more tokens in context window than o3. Claude 3.5 Haiku is $5.20 cheaper per million tokens. o3 supports multimodal inputs. Claude 3.5 Haiku is available on 3 providers. Overall, o3 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
o3 represents the next generation in OpenAI's reasoning model series, developed to advance the capabilities of deliberate, step-by-step problem solving. Built to handle increasingly complex challenges across mathematics, science, and coding, it continues the evolution of reasoning-focused AI with improved analytical depth and accuracy.
5 months newer
Claude 3.5 Haiku
Anthropic
2024-10-22
o3
OpenAI
2025-04-16
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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($5.20 cheaper)
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o3
Input:$2.00
Output:$8.00
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude 3.5 Haiku
Average Score:41.1%
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o3
Average Score:76.2%(+35.1%)
Performance comparison across key benchmark categories
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Claude 3.5 Haiku
Coding40.6%
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o3
Coding69.1%(+28.5%)
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Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
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 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:41.1%
Providers:3
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o3
Avg Score:76.2%(+35.1%)
Providers:1