What is the difference between Claude 3.7 Sonnet and xAI: Grok 4.5?

Claude 3.7 Sonnet is developed by Anthropic while xAI: Grok 4.5 is developed by xAI. Claude 3.7 Sonnet has a 200K token context window vs xAI: Grok 4.5's 500K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Sonnet or xAI: Grok 4.5?

It depends on your use case. Claude 3.7 Sonnet and xAI: Grok 4.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude 3.7 Sonnet cost compared to xAI: Grok 4.5?

Claude 3.7 Sonnet costs $3/M input tokens and xAI: Grok 4.5 costs $2/M input tokens. xAI: Grok 4.5 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 xAI: Grok 4.5 on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and xAI: Grok 4.5 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 xAI: Grok 4.5?

Claude 3.7 Sonnet is developed by Anthropic while xAI: Grok 4.5 is developed by xAI. Claude 3.7 Sonnet has a 200K token context window vs xAI: Grok 4.5's 500K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude 3.7 Sonnet or xAI: Grok 4.5?

It depends on your use case. Claude 3.7 Sonnet and xAI: Grok 4.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude 3.7 Sonnet cost compared to xAI: Grok 4.5?

Claude 3.7 Sonnet costs $3/M input tokens and xAI: Grok 4.5 costs $2/M input tokens. xAI: Grok 4.5 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 xAI: Grok 4.5 on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and xAI: Grok 4.5 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 xAI: Grok 4.5: Which Is Better?

Updated Jul 2026

Our Verdict

xAI: Grok 4.5

Claude 3.7 SonnetRunner-up

No community votes yet. On paper, xAI: Grok 4.5 has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

xAI: Grok 4.5

Input

$2.00

1.5× cheaper

Output

$6.00

2.5× cheaper

xAI: Grok 4.5 is cheaper on both — 1.5× input, 2.5× output

Writing DNA

Style Comparison

Similarity

37%

xAI: Grok 4.5 uses 9.0x more emoji

Claude 3.7 Sonnet

xAI: Grok 4.5

62%Vocabulary61%

35wSentence Length16w

0.99Hedging0.23

1.2Bold2.5

4.3Lists2.4

0.00Emoji0.09

1.78Headings0.48

0.23Transitions0.06

Based on 13 + 27 text responses

Research

What we learned reading every model

Claude 3.7 Sonnet and xAI: Grok 4.5 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 Llama 4 MaverickNew provider

Claude 3.7 Sonnet vs GPT-5New provider

Updated Jul 2026

Our Verdict

xAI: Grok 4.5

Claude 3.7 SonnetRunner-up

No community votes yet. On paper, xAI: Grok 4.5 has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

xAI: Grok 4.5

Input

$2.00

1.5× cheaper

Output

$6.00

2.5× cheaper

xAI: Grok 4.5 is cheaper on both — 1.5× input, 2.5× output

Writing DNA

Style Comparison

Similarity

37%

xAI: Grok 4.5 uses 9.0x more emoji

Claude 3.7 Sonnet

xAI: Grok 4.5

62%Vocabulary61%

35wSentence Length16w

0.99Hedging0.23

1.2Bold2.5

4.3Lists2.4

0.00Emoji0.09

1.78Headings0.48

0.23Transitions0.06

Based on 13 + 27 text responses

Research

What we learned reading every model

Claude 3.7 Sonnet and xAI: Grok 4.5 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 Llama 4 MaverickNew provider

Claude 3.7 Sonnet vs GPT-5New provider