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o3 vs Phi 4
Comprehensive side-by-side LLM comparison
o3 leads with 27.2% higher average benchmark score. o3 offers 268.0K more tokens in context window than Phi 4. Phi 4 is $9.79 cheaper per million tokens. o3 supports multimodal inputs. Overall, o3 is the stronger choice for coding tasks.
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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.
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Microsoft
Phi-4 was introduced as the fourth generation of Microsoft's small language model series, designed to push the boundaries of what compact models can achieve. Built with advanced training techniques and architectural improvements, it demonstrates continued progress in efficient, high-quality language models.
4 months newer
Phi 4
Microsoft
2024-12-12
o3
OpenAI
2025-04-16
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Pricing Comparison
Cost per million tokens (USD)
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o3
Input:$2.00
Output:$8.00
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Phi 4
Input:$0.07
Output:$0.14($9.79 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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o3
Average Score:83.3%(+27.2%)
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Phi 4
Average Score:56.1%
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Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
Phi 4
2024-06-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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o3
1 providers
OpenAI
Throughput: 50 tok/s
Latency: 20ms
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Phi 4
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o3
Avg Score:83.3%(+27.2%)
Providers:1
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Phi 4
Avg Score:56.1%
Providers:1