OpenAI o3 vs GPT-4.1

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o3

OpenAI

Next generation reasoning model. Improved coding and math over o1.

Input$10.00/M
Output$40.00/M
Context200K tokens
Best ForAdvanced coding, complex problem-solving
Benchmark85/100

GPT-4.1

OpenAI

Updated GPT-4 generation with improved instruction following and reduced hallucination. Better coding accuracy than GPT-4o.

Input$2.00/M
Output$8.00/M
Context128K tokens
Best ForProduction coding, API development, complex instructions
Benchmark80/100

Benchmark Performance Comparison

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

BenchmarkOpenAI o3GPT-4.1Leader
Overall Score 85 80 o3 leads by 5pts
SWE-bench Verified 82 76 o3 leads by 6pts
LiveCodeBench 88 82 o3 leads by 6pts
HumanEval 96 94 o3 leads by 2pts
BigCodeBench 74 68 o3 leads by 6pts

Cost Comparison by Scenario

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

ScenarioOpenAI o3GPT-4.1Savings
Small Script (1K lines) $1.55 $0.31 GPT-4.1 saves $1.24 (80%)
Medium Feature (10K lines) $11.50 $2.30 GPT-4.1 saves $9.20 (80%)
Large Project (50K lines) $57.50 $11.50 GPT-4.1 saves $46.00 (80%)
Code Review (5K lines) $2.75 $0.55 GPT-4.1 saves $2.20 (80%)

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
OpenAI o3 85 $0.167/pt Higher cost per point
GPT-4.1 80 $0.063/pt Better value

GPT-4.1 delivers the best value at $0.063 per score point.

Strengths & Weaknesses

OpenAI o3

  • + Latest reasoning model
  • + Top-tier across all benchmarks
  • - Very expensive
  • - Slow

GPT-4.1

  • + Latest GPT model
  • + Strong across all benchmarks
  • - Premium pricing

Verdict

GPT-4.1 is cheaper at $2.00/M, but OpenAI o3 scores higher on benchmarks (85 vs 80).

Choose GPT-4.1 for cost-sensitive projects, OpenAI o3 when performance matters most.

Compare with Other Models