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 Reasoning Plus was created as an enhanced reasoning variant, designed to provide even deeper analytical capabilities within the Phi-4 family. Built to maximize reasoning quality while maintaining the efficiency benefits of small models, it represents the most capable reasoning-focused option in the Phi-4 series.
4 months newer

Phi 4 Reasoning Plus
Microsoft
2025-04-30

Grok Code Fast 1
xAI
2025-08-28
Context window and performance specifications
Phi 4 Reasoning Plus
2025-03-01
Available providers and their performance metrics

Grok Code Fast 1
xAI

Phi 4 Reasoning Plus

Grok Code Fast 1

Phi 4 Reasoning Plus

Grok Code Fast 1

Phi 4 Reasoning Plus