Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
xAI
Grok Code Fast was developed as a specialized coding model optimized for speed, designed to provide rapid code completion, generation, and assistance. Built to serve developers requiring quick feedback and iterative coding support, it combines programming expertise with low-latency responses.
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

Grok Code Fast 1
xAI
2025-08-28
Context window and performance specifications
Phi 4 Mini Reasoning
2025-02-01
Available providers and their performance metrics

Grok Code Fast 1
xAI

Phi 4 Mini Reasoning

Grok Code Fast 1

Phi 4 Mini Reasoning

Grok Code Fast 1

Phi 4 Mini Reasoning