GPT-4 vs OpenAI o1 Pro

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 Most expensive OpenAI model, largely superseded by newer options.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

OpenAI o1 Pro

OpenAI

Premium reasoning model with extended compute. Best-in-class for complex math, science, and advanced coding challenges.

Input$20.00/M
Output$80.00/M
Context200K tokens
Best ForResearch-grade problem solving, competition math, complex system design

Cost Comparison by Scenario

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

ScenarioGPT-4OpenAI o1 ProSavings
Small Script (1K lines) $2.85 $3.10 GPT-4 saves $0.25 (8%)
Medium Feature (10K lines) $22.50 $23.00 GPT-4 saves $0.50 (2%)
Large Project (50K lines) $112.50 $115.00 GPT-4 saves $2.50 (2%)
Code Review (5K lines) $6.75 $5.50 OpenAI o1 Pro saves $1.25 (19%)

Verdict

OpenAI o1 Pro wins on both price and performance — $20.00/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