What is the difference between Claude Sonnet 4.6 and Grok 4?

Claude Sonnet 4.6 is developed by Anthropic while Grok 4 is developed by xAI. Claude Sonnet 4.6 has a 1.0M token context window vs Grok 4's 256K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 4.6 or Grok 4?

It depends on your use case. Claude Sonnet 4.6 and Grok 4 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 4.6 cost compared to Grok 4?

Claude Sonnet 4.6 costs $3/M input tokens and Grok 4 costs $3/M input tokens. Grok 4 is $0.00/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 Sonnet 4.6 and Grok 4 on Rival?

This page shows a side-by-side comparison of Claude Sonnet 4.6 and Grok 4 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 4.6 and Grok 4?

Claude Sonnet 4.6 is developed by Anthropic while Grok 4 is developed by xAI. Claude Sonnet 4.6 has a 1.0M token context window vs Grok 4's 256K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Sonnet 4.6 or Grok 4?

It depends on your use case. Claude Sonnet 4.6 and Grok 4 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 4.6 cost compared to Grok 4?

Claude Sonnet 4.6 costs $3/M input tokens and Grok 4 costs $3/M input tokens. Grok 4 is $0.00/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 Sonnet 4.6 and Grok 4 on Rival?

This page shows a side-by-side comparison of Claude Sonnet 4.6 and Grok 4 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 4.6 vs Grok 4: Which Is Better?

Updated Feb 2026

Our Verdict

Claude Sonnet 4.6

Grok 4Runner-up

No community votes yet. On paper, Claude Sonnet 4.6 has the edge — newer, bigger context window.

Too close to call

What do Claude Sonnet 4.6 and Grok 4 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude Sonnet 4.6

Input

$3.00

Output

$15.00

Grok 4

Input

$3.00

Output

$15.00

Writing DNA

Style Comparison

Similarity

35%

Claude Sonnet 4.6 uses 2.7x more emoji

Claude Sonnet 4.6

Grok 4

56%Vocabulary53%

36wSentence Length18w

0.53Hedging0.67

5.1Bold2.7

3.4Lists2.7

0.19Emoji0.07

2.10Headings0.86

0.02Transitions0.04

Based on 23 + 21 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok 4 vs MiniMax M3New provider

Grok 4 vs Claude Sonnet 4Cross-provider

Grok 4 vs Gemini 2.5 Pro Preview 06-05New provider

Updated Feb 2026

Our Verdict

Claude Sonnet 4.6

Grok 4Runner-up

No community votes yet. On paper, Claude Sonnet 4.6 has the edge — newer, bigger context window.

Too close to call

What do Claude Sonnet 4.6 and Grok 4 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude Sonnet 4.6

Input

$3.00

Output

$15.00

Grok 4

Input

$3.00

Output

$15.00

Writing DNA

Style Comparison

Similarity

35%

Claude Sonnet 4.6 uses 2.7x more emoji

Claude Sonnet 4.6

Grok 4

56%Vocabulary53%

36wSentence Length18w

0.53Hedging0.67

5.1Bold2.7

3.4Lists2.7

0.19Emoji0.07

2.10Headings0.86

0.02Transitions0.04

Based on 23 + 21 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok 4 vs MiniMax M3New provider

Grok 4 vs Claude Sonnet 4Cross-provider

Grok 4 vs Gemini 2.5 Pro Preview 06-05New provider