OpenAI o3 vs GPT-4

Compare OpenAI o3 and GPT-4, both from OpenAI, tested across 21 shared challenges. Updated March 2026.

Which is better, OpenAI o3 or GPT-4?

OpenAI o3 and GPT-4 are both competitive models. OpenAI o3 costs $10/M input tokens vs $30/M for GPT-4. Compare their real outputs side by side below.

Key Differences Between OpenAI o3 and GPT-4

OpenAI o3 is made by openai while GPT-4 is from openai. On pricing, OpenAI o3 costs $10/M input tokens vs $30/M for GPT-4.

Our Verdict
OpenAI o3
OpenAI o3
GPT-4
GPT-4

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
98%

OpenAI o3 uses 37.9x more headings

OpenAI o3
GPT-4
68%Vocabulary59%
14wSentence Length18w
0.26Hedging1.10
0.7Bold0.8
3.0Lists2.5
0.00Emoji0.00
0.38Headings0.00
0.12Transitions0.45
Based on 16 + 15 text responses
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