Comprehensive side-by-side LLM comparison
Phi 4 Reasoning leads with 32.9% higher average benchmark score. Overall, Phi 4 Reasoning is the stronger choice for coding tasks.
Microsoft
Phi-4 Reasoning was developed to incorporate extended analytical thinking into the Phi-4 architecture, designed to spend more time on complex problem-solving. Built to combine compact model efficiency with reasoning depth, it represents Microsoft's exploration of thoughtful small models.
Microsoft
Phi-3.5 Mini was developed by Microsoft as a small language model designed to deliver impressive performance despite its compact size. Built with efficiency in mind, it demonstrates that capable language understanding and generation can be achieved with fewer parameters, making AI more accessible for edge and resource-constrained deployments.
8 months newer

Phi-3.5-mini-instruct
Microsoft
2024-08-23

Phi 4 Reasoning
Microsoft
2025-04-30
Context window and performance specifications
Average performance across 3 common benchmarks

Phi 4 Reasoning

Phi-3.5-mini-instruct
Phi 4 Reasoning
2025-03-01
Available providers and their performance metrics

Phi 4 Reasoning

Phi-3.5-mini-instruct
Azure

Phi 4 Reasoning

Phi-3.5-mini-instruct

Phi 4 Reasoning

Phi-3.5-mini-instruct