GPT-4 vs GPT-3.5 Turbo

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 Most expensive OpenAI model, largely superseded by newer options.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

GPT-3.5 Turbo

OpenAI

Budget model for simple tasks. Being phased out but still widely used.

Input$0.500/M
Output$1.50/M
Context16K tokens
Best ForSimple chatbots, basic text generation
Benchmark40/100

Benchmark Performance Comparison

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

BenchmarkGPT-4GPT-3.5 TurboLeader
Overall Score 68 40 GPT-4 leads by 28pts
SWE-bench Verified 60 32 GPT-4 leads by 28pts
LiveCodeBench 70 42 GPT-4 leads by 28pts
HumanEval 86 62 GPT-4 leads by 24pts
BigCodeBench 54 26 GPT-4 leads by 28pts

Cost Comparison by Scenario

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

ScenarioGPT-4GPT-3.5 TurboSavings
Small Script (1K lines) $2.85 $0.06 GPT-3.5 Turbo saves $2.79 (98%)
Medium Feature (10K lines) $22.50 $0.48 GPT-3.5 Turbo saves $22.02 (98%)
Large Project (50K lines) $112.50 $2.38 GPT-3.5 Turbo saves $110.13 (98%)
Code Review (5K lines) $6.75 $0.13 GPT-3.5 Turbo saves $6.63 (98%)

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
GPT-3.5 Turbo 40 $0.013/pt Better value

GPT-3.5 Turbo delivers the best value at $0.013 per score point.

Strengths & Weaknesses

GPT-4

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

GPT-3.5 Turbo

  • + Ultra-cheap
  • + Very fast
  • - Basic coding only

Verdict

GPT-3.5 Turbo is cheaper at $0.500/M, but GPT-4 scores higher on benchmarks (68 vs 40).

Choose GPT-3.5 Turbo for cost-sensitive projects, GPT-4 when performance matters most.

Compare with Other Models