DeepSeek Reasoner (R1) vs Phi-4 Mini

Performance benchmarks + pricing comparison — updated April 2026

DeepSeek Reasoner (R1)

DeepSeek

DeepSeek's reasoning model. Comparable to OpenAI's o1 but at much lower cost.

Input$0.550/M
Output$2.19/M
Context128K tokens
Best ForComplex reasoning, math, advanced coding
Benchmark72/100

Phi-4 Mini

Microsoft

Microsoft's latest small model with improved coding ability. Better than Phi-3 for developer tasks.

Input$0.100/M
Output$0.300/M
Context128K tokens
Best ForCoding assistance, lightweight development tools

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioDeepSeek Reasoner (R1)Phi-4 MiniSavings
Small Script (1K lines) $0.08 $0.01 Phi-4 Mini saves $0.07 (85%)
Medium Feature (10K lines) $0.63 $0.10 Phi-4 Mini saves $0.54 (85%)
Large Project (50K lines) $3.15 $0.47 Phi-4 Mini saves $2.68 (85%)
Code Review (5K lines) $0.15 $0.02 Phi-4 Mini saves $0.13 (83%)

Verdict

Phi-4 Mini wins on both price and performance — $0.100/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models