What is the difference between Claude 3 Opus and Grok 3 Beta?

Claude 3 Opus is developed by Anthropic while Grok 3 Beta is developed by xAI. Claude 3 Opus has a 200K token context window vs Grok 3 Beta's 131K. 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 Grok 3 Beta?

It depends on your use case. Claude 3 Opus and Grok 3 Beta 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 Grok 3 Beta?

Claude 3 Opus costs $15/M input tokens and Grok 3 Beta costs $2/M input tokens. Grok 3 Beta is $13.00/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 Grok 3 Beta on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Grok 3 Beta 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 Grok 3 Beta?

Claude 3 Opus is developed by Anthropic while Grok 3 Beta is developed by xAI. Claude 3 Opus has a 200K token context window vs Grok 3 Beta's 131K. 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 Grok 3 Beta?

It depends on your use case. Claude 3 Opus and Grok 3 Beta 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 Grok 3 Beta?

Claude 3 Opus costs $15/M input tokens and Grok 3 Beta costs $2/M input tokens. Grok 3 Beta is $13.00/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 Grok 3 Beta on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Grok 3 Beta 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 Grok 3 Beta: Which Is Better?

Updated Apr 2025

Our Verdict

Claude 3 Opus

Grok 3 Beta

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Grok 3 Beta is 19x 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

Grok 3 Beta

Input

$2.00

7.5× cheaper

Output

$4.00

19× cheaper

Grok 3 Beta is cheaper on both — 7.5× input, 19× output

Writing DNA

Style Comparison

Similarity

52%

Grok 3 Beta uses 309.1x more bold

Claude 3 Opus

Grok 3 Beta

54%Vocabulary48%

14wSentence Length19w

0.48Hedging0.67

0.0Bold3.1

3.0Lists5.5

0.00Emoji0.00

0.00Headings0.52

0.06Transitions0.28

Based on 3 + 23 text responses

Research

What we learned reading every model

Claude 3 Opus and Grok 3 Beta 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

Grok 3 Beta vs Llama 4 MaverickNew provider

Grok 3 Beta vs GPT-5New provider

Claude 3 Opus vs MiniMax M3New provider

Updated Apr 2025

Our Verdict

Claude 3 Opus

Grok 3 Beta

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Grok 3 Beta is 19x 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

Grok 3 Beta

Input

$2.00

7.5× cheaper

Output

$4.00

19× cheaper

Grok 3 Beta is cheaper on both — 7.5× input, 19× output

Writing DNA

Style Comparison

Similarity

52%

Grok 3 Beta uses 309.1x more bold

Claude 3 Opus

Grok 3 Beta

54%Vocabulary48%

14wSentence Length19w

0.48Hedging0.67

0.0Bold3.1

3.0Lists5.5

0.00Emoji0.00

0.00Headings0.52

0.06Transitions0.28

Based on 3 + 23 text responses

Research

What we learned reading every model

Claude 3 Opus and Grok 3 Beta 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

Grok 3 Beta vs Llama 4 MaverickNew provider

Grok 3 Beta vs GPT-5New provider

Claude 3 Opus vs MiniMax M3New provider