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o1-preview vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 29.1% higher average benchmark score. o3 offers 139.2K more tokens in context window than o1-preview. o3 is $65.00 cheaper per million tokens. o3 supports multimodal inputs. Overall, o3 is the stronger choice for coding tasks.
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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.
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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.
7 months newer
o1-preview
OpenAI
2024-09-12
o3
OpenAI
2025-04-16
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Pricing Comparison
Cost per million tokens (USD)
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o1-preview
Input:$15.00
Output:$60.00
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o3
Input:$2.00
Output:$8.00($65.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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o1-preview
Average Score:52.2%
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o3
Average Score:81.3%(+29.1%)
Performance comparison across key benchmark categories
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o1-preview
Coding41.3%
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o3
Coding69.1%(+27.8%)
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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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o1-preview
2 providers
Azure
Throughput: 16 tok/s
Latency: 0.54ms
OpenAI
Throughput: 66 tok/s
Latency: 16.2ms
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o1-preview
Avg Score:52.2%
Providers:2
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o3
Avg Score:81.3%(+29.1%)
Providers:1