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GPT-5 Codex vs Phi 4 Mini Reasoning
Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-5 Codex was developed as a specialized variant of GPT-5 optimized for programming and software development tasks. Built to understand and generate code across multiple programming languages, it serves developers with enhanced capabilities for code completion, debugging, translation, and explanation of complex codebases.
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Microsoft
Phi-4 Mini Reasoning was developed to incorporate extended thinking capabilities into the ultra-compact Phi-4 Mini architecture. Built to demonstrate that reasoning enhancements can be applied even to very small models, it brings analytical depth to resource-constrained environments.
4 months newer
Phi 4 Mini Reasoning
Microsoft
2025-04-30
GPT-5 Codex
OpenAI
2025-09-15
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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:0.0%
Providers:0
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Phi 4 Mini Reasoning
Avg Score:0.0%
Providers:0