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GPT-5 Codex vs Phi 4 Mini Reasoning
Comprehensive side-by-side LLM comparison
Phi 4 Mini Reasoning leads with 32.4% higher average benchmark score. Overall, Phi 4 Mini Reasoning is the stronger choice for coding tasks.
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OpenAI
GPT-5 Codex is a language model developed by OpenAI. It achieves strong performance with an average score of 74.5% across 1 benchmarks. Notable strengths include SWE-Bench Verified (74.5%). Released in 2025, it represents OpenAI's latest advancement in AI technology.
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Microsoft
Phi 4 Mini Reasoning is a language model developed by Microsoft. It achieves strong performance with an average score of 68.0% across 3 benchmarks. It excels particularly in MATH-500 (94.6%), AIME (57.5%), GPQA (52.0%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Microsoft's latest advancement in AI technology.
4 months newer
Phi 4 Mini Reasoning
Microsoft
2025-04-30
GPT-5 Codex
OpenAI
2025-09-15
Average performance across 4 common benchmarks
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GPT-5 Codex
Average Score:18.6%
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Phi 4 Mini Reasoning
Average Score:51.0%(+32.4%)
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Knowledge Cutoff
Training data recency comparison
GPT-5 Codex
2024-09-30
Phi 4 Mini Reasoning
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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GPT-5 Codex
0 providers
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Phi 4 Mini Reasoning
0 providers
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GPT-5 Codex
Avg Score:18.6%
Providers:0
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Phi 4 Mini Reasoning
Avg Score:51.0%(+32.4%)
Providers:0