What is the difference between Claude Sonnet 5 and OpenAI o4 Mini High?

Claude Sonnet 5 is developed by Anthropic while OpenAI o4 Mini High is developed by OpenAI. Claude Sonnet 5 has a 1.0M token context window vs OpenAI o4 Mini High's 200K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or OpenAI o4 Mini High?

It depends on your use case. Claude Sonnet 5 and OpenAI o4 Mini High each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 5 cost compared to OpenAI o4 Mini High?

Claude Sonnet 5 costs $2/M input tokens and OpenAI o4 Mini High costs $1.1/M input tokens. OpenAI o4 Mini High is $0.90/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Claude Sonnet 5 and OpenAI o4 Mini High on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 and OpenAI o4 Mini High 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 5 and OpenAI o4 Mini High?

Claude Sonnet 5 is developed by Anthropic while OpenAI o4 Mini High is developed by OpenAI. Claude Sonnet 5 has a 1.0M token context window vs OpenAI o4 Mini High's 200K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 5 or OpenAI o4 Mini High?

It depends on your use case. Claude Sonnet 5 and OpenAI o4 Mini High each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude Sonnet 5 cost compared to OpenAI o4 Mini High?

Claude Sonnet 5 costs $2/M input tokens and OpenAI o4 Mini High costs $1.1/M input tokens. OpenAI o4 Mini High is $0.90/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Claude Sonnet 5 and OpenAI o4 Mini High on Rival?

This page shows a side-by-side comparison of Claude Sonnet 5 and OpenAI o4 Mini High 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 5 vs OpenAI o4 Mini High: Which Is Better?

Updated Jun 2026

Our Verdict

Claude Sonnet 5

OpenAI o4 Mini HighRunner-up

No community votes yet. On paper, Claude Sonnet 5 has the edge — bigger model tier, newer, bigger context window.

Slight edge

API pricing

Cost per 1M tokens

Claude Sonnet 5

Input

$2.00

Output

$10.00

OpenAI o4 Mini High

Input

$1.10

1.8× cheaper

Output

$4.40

2.3× cheaper

OpenAI o4 Mini High is cheaper on both — 1.8× input, 2.3× output

Writing DNA

Style Comparison

Similarity

43%

Claude Sonnet 5 uses 350.5x more bold

Claude Sonnet 5

OpenAI o4 Mini High

59%Vocabulary70%

35wSentence Length18w

0.53Hedging0.33

3.5Bold0.0

3.5Lists1.3

0.79Emoji0.02

1.25Headings0.00

0.06Transitions0.04

Based on 27 + 14 text responses

Research

What we learned reading every model

Claude Sonnet 5 and OpenAI o4 Mini High 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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OpenAI o4 Mini High vs Claude Sonnet 4Cross-provider

OpenAI o4 Mini High vs Pony AlphaNew provider

Updated Jun 2026

Our Verdict

Claude Sonnet 5

OpenAI o4 Mini HighRunner-up

No community votes yet. On paper, Claude Sonnet 5 has the edge — bigger model tier, newer, bigger context window.

Slight edge

API pricing

Cost per 1M tokens

Claude Sonnet 5

Input

$2.00

Output

$10.00

OpenAI o4 Mini High

Input

$1.10

1.8× cheaper

Output

$4.40

2.3× cheaper

OpenAI o4 Mini High is cheaper on both — 1.8× input, 2.3× output

Writing DNA

Style Comparison

Similarity

43%

Claude Sonnet 5 uses 350.5x more bold

Claude Sonnet 5

OpenAI o4 Mini High

59%Vocabulary70%

35wSentence Length18w

0.53Hedging0.33

3.5Bold0.0

3.5Lists1.3

0.79Emoji0.02

1.25Headings0.00

0.06Transitions0.04

Based on 27 + 14 text responses

Research

What we learned reading every model

Claude Sonnet 5 and OpenAI o4 Mini High 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

OpenAI o4 Mini High vs MiniMax M3New provider

OpenAI o4 Mini High vs Claude Sonnet 4Cross-provider

OpenAI o4 Mini High vs Pony AlphaNew provider