Microsoft: Phi 4 Reasoning Plus

Microsoft's Phi-4-reasoning-plus, created on May 1, 2025, is an enhanced 14B parameter model designed for structured reasoning workflows. It exhibits moderate speed performance, ranking in the 25th percentile across benchmarks, indicating it is not among the fastest models available. However, it offers competitive pricing, positioned at the 45th percentile. A standout feature is its exceptional reliability, achieving a perfect 100th percentile, meaning it consistently provides usable responses with minimal technical failures. The model demonstrates remarkable accuracy in specific domains. It achieved perfect 100% accuracy in Ethics (Baseline), making it the most accurate model at its price point and speed. Its Reasoning (Baseline) performance is also strong at 96.0% accuracy, placing it in the 91st percentile. In Coding (Baseline), it performs well with 89.0% accuracy (77th percentile). However, a significant weakness is its Instruction Following (Baseline) capability, where it scored only 12.1% accuracy, ranking in the 21st percentile. Email Classification (Baseline) also shows a lower accuracy of 88.0% (13th percentile), despite being cost-effective and fast for this task. General Knowledge (Baseline) is solid at 95.5% accuracy. While its longer, step-by-step outputs enhance quality for complex tasks, this contributes to its moderate speed.