GPT-5
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GPT-5 vs GPT-5 Codex
Compare GPT-5 and GPT-5 Codex, both from OpenAI, in 151 community votes, gpt-5 codex wins 64% of head-to-head duels, tested across 44 shared challenges. Updated April 2026.
Which is better, GPT-5 or GPT-5 Codex?
GPT-5 Codex is the better choice overall, winning 64% of 151 blind community votes on Rival. Compare their real outputs side by side below.
Key Differences Between GPT-5 and GPT-5 Codex
GPT-5 is made by openai while GPT-5 Codex is from openai. In community voting, In 151 community votes, GPT-5 Codex wins 64% of head-to-head duels.
In 151 community votes, GPT-5 Codex wins 64% of head-to-head duels. GPT-5 leads in Image Generation, while GPT-5 Codex leads in Web Design, Reasoning, Conversation. Based on blind community voting from the Rival open dataset of 151+ human preference judgments for this pair.
Web Design: GPT-5 Codex wins 83% of votes
Reasoning: GPT-5 Codex wins 67% of votes
Image Generation: GPT-5 wins 67% of votes
Conversation: GPT-5 Codex wins 60% of votes
Analysis: GPT-5 Codex wins 67% of votes
Our Verdict
GPT-5 CodexWinner
GPT-5Runner-up
Pick GPT-5 Codex. In 151 blind votes, GPT-5 Codex wins 64% of the time. That's not luck.
Pick GPT-5 for Image Generation. Pick GPT-5 Codex for Web Design, Reasoning, Analysis.
Clear winner
Writing DNA
Style Comparison
Similarity
100%
GPT-5 Codex uses 14.6x more emoji
GPT-5
GPT-5 Codex
65%Vocabulary64%
13wSentence Length17w
0.20Hedging0.38
0.2Bold2.3
4.6Lists3.5
0.00Emoji0.15
0.16Headings0.49
0.03Transitions0.05
Based on 16 + 13 text responses
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