GPT-4 Turbo vs Phi-3 Medium

Performance benchmarks + pricing comparison — updated April 2026

GPT-4 Turbo

OpenAI

Previous generation high-performance model. Good for complex reasoning tasks.

Input$10.00/M
Output$30.00/M
Context128K tokens
Best ForComplex reasoning, data extraction, analysis
Benchmark70/100

Phi-3 Medium

Microsoft

Microsoft's mid-size Phi-3 model. Better performance than Mini for moderate complexity tasks.

Input$0.100/M
Output$0.300/M
Context128K tokens
Best ForModerate complexity tasks, Azure-based applications

Cost Comparison by Scenario

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

ScenarioGPT-4 TurboPhi-3 MediumSavings
Small Script (1K lines) $1.25 $0.01 Phi-3 Medium saves $1.24 (99%)
Medium Feature (10K lines) $9.50 $0.10 Phi-3 Medium saves $9.40 (99%)
Large Project (50K lines) $47.50 $0.47 Phi-3 Medium saves $47.02 (99%)
Code Review (5K lines) $2.50 $0.02 Phi-3 Medium saves $2.48 (99%)

Verdict

Phi-3 Medium 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