GPT-4 vs Microsoft Phi-4

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 Most expensive OpenAI model, largely superseded by newer options.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

Microsoft Phi-4

Microsoft

Microsoft's compact 14B model with strong reasoning and coding capability. Excellent value for small-scale deployments.

Input$0.100/M
Output$0.300/M
Context128K tokens
Best ForEdge deployments, local inference, budget coding
Benchmark45/100

Benchmark Performance Comparison

Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.

BenchmarkGPT-4Microsoft Phi-4Leader
Overall Score 68 45 GPT-4 leads by 23pts
SWE-bench Verified 60 38 GPT-4 leads by 22pts
LiveCodeBench 70 46 GPT-4 leads by 24pts
HumanEval 86 68 GPT-4 leads by 18pts
BigCodeBench 54 30 GPT-4 leads by 24pts

Cost Comparison by Scenario

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

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

Value Analysis (Price per Benchmark Score Point)

Lower is better — how much you pay for each point of benchmark performance.

ModelOverall ScorePrice per Score PointVerdict
GPT-4 68 $0.441/pt Higher cost per point
Microsoft Phi-4 45 $0.002/pt Better value

Microsoft Phi-4 delivers the best value at $0.002 per score point.

Strengths & Weaknesses

GPT-4

  • + Original breakthrough model
  • - Two generations behind
  • - Expensive

Microsoft Phi-4

  • + Small model, runs locally
  • - Limited capacity

Verdict

Microsoft Phi-4 is cheaper at $0.100/M, but GPT-4 scores higher on benchmarks (68 vs 45).

Choose Microsoft Phi-4 for cost-sensitive projects, GPT-4 when performance matters most.

Compare with Other Models