What is the difference between GPT-5 and GPT-5 Codex?

Both are developed by OpenAI but target different use cases. in 151 community votes on Rival, GPT-5 Codex wins 64% of head-to-head matchups. These results are based on blind head-to-head voting across 49 challenges.

Which is better, GPT-5 or GPT-5 Codex?

Based on 151 community votes on Rival, GPT-5 Codex wins 64% of head-to-head matchups against GPT-5. GPT-5 Codex is strongest in Web Design, Reasoning, Conversation. However, GPT-5 leads in Image Generation.

How are GPT-5 vs GPT-5 Codex votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 151 votes have been collected for this pair across 49 challenges. All vote data is part of Rival's open dataset.

What is the difference between GPT-5 and GPT-5 Codex?

Both are developed by OpenAI but target different use cases. in 151 community votes on Rival, GPT-5 Codex wins 64% of head-to-head matchups. These results are based on blind head-to-head voting across 49 challenges.

Which is better, GPT-5 or GPT-5 Codex?

Based on 151 community votes on Rival, GPT-5 Codex wins 64% of head-to-head matchups against GPT-5. GPT-5 Codex is strongest in Web Design, Reasoning, Conversation. However, GPT-5 leads in Image Generation.

How are GPT-5 vs GPT-5 Codex votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 151 votes have been collected for this pair across 49 challenges. All vote data is part of Rival's open dataset.

GPT-5 vs GPT-5 Codex: Which Is Better?

Updated Sep 2025

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

API pricing

Cost per 1M tokens

GPT-5

Input

$1.25

Output

$10.00

GPT-5 Codex

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

54%

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

Research

What we learned reading every model

GPT-5 and GPT-5 Codex have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

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GPT-5 Codex vs Llama 4 MaverickNew provider

GPT-5 Codex vs Claude Opus 4New provider

Updated Sep 2025

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

API pricing

Cost per 1M tokens

GPT-5

Input

$1.25

Output

$10.00

GPT-5 Codex

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

54%

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

Research

What we learned reading every model

GPT-5 and GPT-5 Codex have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Codex vs MiniMax M3New provider

GPT-5 Codex vs Llama 4 MaverickNew provider

GPT-5 Codex vs Claude Opus 4New provider