GPT-4 vs OpenAI o3
Compare GPT-4 and OpenAI o3, both from OpenAI, tested across 26 shared challenges. Updated May 2026.
Which is better, GPT-4 or OpenAI o3?
GPT-4 and OpenAI o3 are both competitive models. GPT-4 costs $30/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between GPT-4 and OpenAI o3
GPT-4 is made by openai while OpenAI o3 is from openai. On pricing, GPT-4 costs $30/M input tokens vs $10/M for OpenAI o3.
API pricing
Per 1M tokens
GPT-4
Input
$30.00
Output
$60.00
OpenAI o3
Input
$10.00
3.0× cheaper
Output
$40.00
1.5× cheaper
OpenAI o3 is cheaper on both — 3.0× input, 1.5× output
Our Verdict
GPT-4
OpenAI o3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
46%
OpenAI o3 uses 37.9x more headings
GPT-4
OpenAI o3
59%Vocabulary68%
18wSentence Length14w
1.10Hedging0.26
0.8Bold0.7
2.5Lists3.0
0.00Emoji0.00
0.00Headings0.38
0.45Transitions0.12
Based on 15 + 16 text responses
FAQ
