What is the difference between Claude 3 Opus and o3 Mini?

Claude 3 Opus is developed by Anthropic while o3 Mini is developed by OpenAI. Claude 3 Opus has a 200K token context window vs o3 Mini's 64K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or o3 Mini?

It depends on your use case. Claude 3 Opus and o3 Mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to o3 Mini?

Claude 3 Opus costs $15/M input tokens and o3 Mini costs $1.1/M input tokens. o3 Mini is $13.90/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 3 Opus and o3 Mini on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and o3 Mini 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 3 Opus and o3 Mini?

Claude 3 Opus is developed by Anthropic while o3 Mini is developed by OpenAI. Claude 3 Opus has a 200K token context window vs o3 Mini's 64K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or o3 Mini?

It depends on your use case. Claude 3 Opus and o3 Mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to o3 Mini?

Claude 3 Opus costs $15/M input tokens and o3 Mini costs $1.1/M input tokens. o3 Mini is $13.90/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 3 Opus and o3 Mini on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and o3 Mini 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 3 Opus vs o3 Mini: Which Is Better?

Updated Dec 2024

Our Verdict

Claude 3 Opus

o3 MiniRunner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window.

o3 Mini is 17x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3 Opus

Input

$15.00

Output

$75.00

o3 Mini

Input

$1.10

14× cheaper

Output

$4.40

17× cheaper

o3 Mini is cheaper on both — 14× input, 17× output

Writing DNA

Style Comparison

Similarity

52%

o3 Mini uses 390.2x more bold

Claude 3 Opus

o3 Mini

54%Vocabulary65%

14wSentence Length17w

0.48Hedging0.74

0.0Bold3.9

3.0Lists1.7

0.00Emoji0.00

0.00Headings0.47

0.06Transitions0.38

Based on 3 + 12 text responses

Research

What we learned reading every model

Claude 3 Opus and o3 Mini 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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o3 Mini vs MiniMax M3New provider

o3 Mini vs Grok 3New provider

Updated Dec 2024

Our Verdict

Claude 3 Opus

o3 MiniRunner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window.

o3 Mini is 17x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3 Opus

Input

$15.00

Output

$75.00

o3 Mini

Input

$1.10

14× cheaper

Output

$4.40

17× cheaper

o3 Mini is cheaper on both — 14× input, 17× output

Writing DNA

Style Comparison

Similarity

52%

o3 Mini uses 390.2x more bold

Claude 3 Opus

o3 Mini

54%Vocabulary65%

14wSentence Length17w

0.48Hedging0.74

0.0Bold3.9

3.0Lists1.7

0.00Emoji0.00

0.00Headings0.47

0.06Transitions0.38

Based on 3 + 12 text responses

Research

What we learned reading every model

Claude 3 Opus and o3 Mini 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

o3 Mini vs Llama 4 MaverickNew provider

o3 Mini vs MiniMax M3New provider

o3 Mini vs Grok 3New provider