What is the difference between Claude 3.7 Sonnet and Kimi K2 Thinking?

Claude 3.7 Sonnet is developed by Anthropic while Kimi K2 Thinking is developed by Moonshot AI. Claude 3.7 Sonnet has a 200K token context window vs Kimi K2 Thinking's 262K. 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 Kimi K2 Thinking?

It depends on your use case. Claude 3.7 Sonnet and Kimi K2 Thinking 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 Kimi K2 Thinking?

Claude 3.7 Sonnet costs $3/M input tokens and Kimi K2 Thinking costs $0.6/M input tokens. Kimi K2 Thinking is $2.40/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 Kimi K2 Thinking on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and Kimi K2 Thinking 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 Kimi K2 Thinking?

Claude 3.7 Sonnet is developed by Anthropic while Kimi K2 Thinking is developed by Moonshot AI. Claude 3.7 Sonnet has a 200K token context window vs Kimi K2 Thinking's 262K. 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 Kimi K2 Thinking?

It depends on your use case. Claude 3.7 Sonnet and Kimi K2 Thinking 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 Kimi K2 Thinking?

Claude 3.7 Sonnet costs $3/M input tokens and Kimi K2 Thinking costs $0.6/M input tokens. Kimi K2 Thinking is $2.40/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 Kimi K2 Thinking on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and Kimi K2 Thinking 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 Kimi K2 Thinking: Which Is Better?

Updated Nov 2025

Our Verdict

Kimi K2 Thinking

Claude 3.7 SonnetRunner-up

No community votes yet. On paper, Kimi K2 Thinking has the edge — bigger model tier, newer.

Kimi K2 Thinking is 6.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

Kimi K2 Thinking

Input

$0.60

5.0× cheaper

Output

$2.50

6.0× cheaper

Kimi K2 Thinking is cheaper on both — 5.0× input, 6.0× output

Writing DNA

Style Comparison

Similarity

44%

Kimi K2 Thinking uses 4.8x more bold

Claude 3.7 Sonnet

Kimi K2 Thinking

62%Vocabulary57%

35wSentence Length26w

0.99Hedging0.36

1.2Bold5.8

4.3Lists6.0

0.00Emoji0.00

1.78Headings0.56

0.23Transitions0.06

Based on 13 + 14 text responses

Research

What we learned reading every model

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 Nov 2025

Our Verdict

Kimi K2 Thinking

Claude 3.7 SonnetRunner-up

No community votes yet. On paper, Kimi K2 Thinking has the edge — bigger model tier, newer.

Kimi K2 Thinking is 6.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet

Input

$3.00

Output

$15.00

Kimi K2 Thinking

Input

$0.60

5.0× cheaper

Output

$2.50

6.0× cheaper

Kimi K2 Thinking is cheaper on both — 5.0× input, 6.0× output

Writing DNA

Style Comparison

Similarity

44%

Kimi K2 Thinking uses 4.8x more bold

Claude 3.7 Sonnet

Kimi K2 Thinking

62%Vocabulary57%

35wSentence Length26w

0.99Hedging0.36

1.2Bold5.8

4.3Lists6.0

0.00Emoji0.00

1.78Headings0.56

0.23Transitions0.06

Based on 13 + 14 text responses

Research

What we learned reading every model

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