GPT-4 Turbo vs OpenAI o4-mini

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

OpenAI o4-mini

OpenAI

Updated mini reasoning model. Similar pricing to o3-mini with updated capabilities.

Input$1.10/M
Output$4.40/M
Context200K tokens
Best ForGeneral reasoning, coding tasks
Benchmark72/100

Benchmark Performance Comparison

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

BenchmarkGPT-4 TurboOpenAI o4-miniLeader
Overall Score 70 72 o4-mini leads by 2pts
SWE-bench Verified 64 66 o4-mini leads by 2pts
LiveCodeBench 72 74 o4-mini leads by 2pts
HumanEval 88 92 o4-mini leads by 4pts
BigCodeBench 56 56 GPT-4 Turbo leads by 0pts

Cost Comparison by Scenario

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

ScenarioGPT-4 TurboOpenAI o4-miniSavings
Small Script (1K lines) $1.25 $0.17 OpenAI o4-mini saves $1.08 (86%)
Medium Feature (10K lines) $9.50 $1.27 OpenAI o4-mini saves $8.23 (87%)
Large Project (50K lines) $47.50 $6.33 OpenAI o4-mini saves $41.17 (87%)
Code Review (5K lines) $2.50 $0.30 OpenAI o4-mini saves $2.20 (88%)

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 Turbo 70 $0.133/pt Higher cost per point
OpenAI o4-mini 72 $0.015/pt Better value

OpenAI o4-mini delivers the best value at $0.015 per score point.

Strengths & Weaknesses

GPT-4 Turbo

  • + Proven model
  • + Large context
  • - Superseded by GPT-4o

OpenAI o4-mini

  • + Improved reasoning at mini price
  • - New model, limited data

Verdict

OpenAI o4-mini wins on both price and performance — $1.10/M input with a benchmark score of 72/100.

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

Compare with Other Models