GPT-4 vs Phi-4 Mini

Performance benchmarks + pricing comparison — updated April 2026

GPT-4

OpenAI

Original GPT-4. Most expensive OpenAI model, largely superseded by newer options.

Input$30.00/M
Output$60.00/M
Context8K tokens
Best ForLegacy applications requiring GPT-4 specifically
Benchmark68/100

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.

ScenarioGPT-4Phi-4 MiniSavings
Small Script (1K lines) $2.85 $0.01 Phi-4 Mini saves $2.84 (100%)
Medium Feature (10K lines) $22.50 $0.10 Phi-4 Mini saves $22.41 (100%)
Large Project (50K lines) $112.50 $0.47 Phi-4 Mini saves $112.03 (100%)
Code Review (5K lines) $6.75 $0.02 Phi-4 Mini saves $6.72 (100%)

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