What is the difference between Claude 3.7 Sonnet and Grok 4.20 Beta?

Claude 3.7 Sonnet is developed by Anthropic while Grok 4.20 Beta is developed by xAI. Claude 3.7 Sonnet has a 200K token context window vs Grok 4.20 Beta's 2.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Sonnet or Grok 4.20 Beta?

It depends on your use case. Claude 3.7 Sonnet and Grok 4.20 Beta 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 3.7 Sonnet cost compared to Grok 4.20 Beta?

Claude 3.7 Sonnet costs $3/M input tokens and Grok 4.20 Beta costs $2/M input tokens. Grok 4.20 Beta is $1.00/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 3.7 Sonnet and Grok 4.20 Beta on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and Grok 4.20 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 3.7 Sonnet and Grok 4.20 Beta?

Claude 3.7 Sonnet is developed by Anthropic while Grok 4.20 Beta is developed by xAI. Claude 3.7 Sonnet has a 200K token context window vs Grok 4.20 Beta's 2.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Sonnet or Grok 4.20 Beta?

It depends on your use case. Claude 3.7 Sonnet and Grok 4.20 Beta 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 3.7 Sonnet cost compared to Grok 4.20 Beta?

Claude 3.7 Sonnet costs $3/M input tokens and Grok 4.20 Beta costs $2/M input tokens. Grok 4.20 Beta is $1.00/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 3.7 Sonnet and Grok 4.20 Beta on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and Grok 4.20 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 3.7 Sonnet vs Grok 4.20 Beta: Which Is Better?

Updated Mar 2026

Our Verdict

Grok 4.20 Beta

Claude 3.7 SonnetRunner-up

No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.

Slight edge

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

Grok 4.20 Beta

Input

$2.00

1.5× cheaper

Output

$6.00

2.5× cheaper

Grok 4.20 Beta is cheaper on both — 1.5× input, 2.5× output

Writing DNA

Style Comparison

Similarity

53%

Grok 4.20 Beta uses 3.5x more bold

Claude 3.7 Sonnet

Grok 4.20 Beta

62%Vocabulary57%

35wSentence Length20w

0.99Hedging0.35

1.2Bold4.2

4.3Lists3.7

0.00Emoji0.00

1.78Headings0.62

0.23Transitions0.14

Based on 13 + 23 text responses

Research

What we learned reading every model

Claude 3.7 Sonnet and Grok 4.20 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

Claude 3.7 Sonnet vs MiniMax M3New provider

Claude 3.7 Sonnet vs GPT-5New provider

Claude 3.7 Sonnet vs Llama 4 MaverickNew provider

Updated Mar 2026

Our Verdict

Grok 4.20 Beta

Claude 3.7 SonnetRunner-up

No community votes yet. On paper, Grok 4.20 Beta has the edge — bigger model tier, newer, bigger context window.

Slight edge

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

Grok 4.20 Beta

Input

$2.00

1.5× cheaper

Output

$6.00

2.5× cheaper

Grok 4.20 Beta is cheaper on both — 1.5× input, 2.5× output

Writing DNA

Style Comparison

Similarity

53%

Grok 4.20 Beta uses 3.5x more bold

Claude 3.7 Sonnet

Grok 4.20 Beta

62%Vocabulary57%

35wSentence Length20w

0.99Hedging0.35

1.2Bold4.2

4.3Lists3.7

0.00Emoji0.00

1.78Headings0.62

0.23Transitions0.14

Based on 13 + 23 text responses

Research

What we learned reading every model

Claude 3.7 Sonnet and Grok 4.20 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

Claude 3.7 Sonnet vs MiniMax M3New provider

Claude 3.7 Sonnet vs GPT-5New provider

Claude 3.7 Sonnet vs Llama 4 MaverickNew provider