GPT-4.1 vs Phi-3 Mini

Performance benchmarks + pricing comparison — updated April 2026

GPT-4.1

OpenAI

Updated GPT-4 generation with improved instruction following and reduced hallucination. Better coding accuracy than GPT-4o.

Input$2.00/M
Output$8.00/M
Context128K tokens
Best ForProduction coding, API development, complex instructions
Benchmark80/100

Phi-3 Mini

Microsoft

Microsoft's compact Phi-3 model. Small but capable model for edge and IoT deployment.

Input$0.050/M
Output$0.100/M
Context128K tokens
Best ForEdge AI, IoT devices, lightweight applications

Cost Comparison by Scenario

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

ScenarioGPT-4.1Phi-3 MiniSavings
Small Script (1K lines) $0.31 <$0.01 Phi-3 Mini saves $0.31 (98%)
Medium Feature (10K lines) $2.30 $0.04 Phi-3 Mini saves $2.26 (98%)
Large Project (50K lines) $11.50 $0.19 Phi-3 Mini saves $11.31 (98%)
Code Review (5K lines) $0.55 $0.01 Phi-3 Mini saves $0.54 (98%)

Verdict

Phi-3 Mini wins on both price and performance — $0.050/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