What is the difference between Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex?

Claude Sonnet 3.6 (2022-10-22) is developed by Anthropic while GPT-5 Codex is developed by OpenAI. You can compare their actual outputs across 50 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 3.6 (2022-10-22) or GPT-5 Codex?

It depends on your use case. Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 50 challenges so you can judge which fits your needs best.

How can I compare Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex on Rival?

This page shows a side-by-side comparison of Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

What is the difference between Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex?

Claude Sonnet 3.6 (2022-10-22) is developed by Anthropic while GPT-5 Codex is developed by OpenAI. You can compare their actual outputs across 50 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 3.6 (2022-10-22) or GPT-5 Codex?

It depends on your use case. Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 50 challenges so you can judge which fits your needs best.

How can I compare Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex on Rival?

This page shows a side-by-side comparison of Claude Sonnet 3.6 (2022-10-22) and GPT-5 Codex across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Claude Sonnet 3.6 (2022-10-22) vs GPT-5 Codex: Which Is Better?

Updated Sep 2025

Our Verdict

GPT-5 Codex

Claude Sonnet 3.6 (2022-10-22)Runner-up

No community votes yet. On paper, GPT-5 Codex has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

Claude Sonnet 3.6 (2022-10-22)

Input

$3.00

Output

$15.00

GPT-5 Codex

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

49%

GPT-5 Codex uses 14.6x more emoji

Claude Sonnet 3.6 (2022-10-22)

GPT-5 Codex

66%Vocabulary64%

74wSentence Length17w

0.72Hedging0.38

0.3Bold2.3

8.9Lists3.5

0.00Emoji0.15

0.06Headings0.49

0.09Transitions0.05

Based on 21 + 13 text responses

Research

What we learned reading every model

Claude Sonnet 3.6 (2022-10-22) 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

Claude Sonnet 3.6 (2022-10-22) vs MiniMax M3New provider

Claude Sonnet 3.6 (2022-10-22) vs Llama 4 MaverickNew provider

Claude Sonnet 3.6 (2022-10-22) vs Grok 3New provider

Updated Sep 2025

Our Verdict

GPT-5 Codex

Claude Sonnet 3.6 (2022-10-22)Runner-up

No community votes yet. On paper, GPT-5 Codex has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

Claude Sonnet 3.6 (2022-10-22)

Input

$3.00

Output

$15.00

GPT-5 Codex

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

49%

GPT-5 Codex uses 14.6x more emoji

Claude Sonnet 3.6 (2022-10-22)

GPT-5 Codex

66%Vocabulary64%

74wSentence Length17w

0.72Hedging0.38

0.3Bold2.3

8.9Lists3.5

0.00Emoji0.15

0.06Headings0.49

0.09Transitions0.05

Based on 21 + 13 text responses

Research

What we learned reading every model

Claude Sonnet 3.6 (2022-10-22) 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

Claude Sonnet 3.6 (2022-10-22) vs MiniMax M3New provider

Claude Sonnet 3.6 (2022-10-22) vs Llama 4 MaverickNew provider

Claude Sonnet 3.6 (2022-10-22) vs Grok 3New provider