What is the difference between Claude 3.7 Sonnet and Kimi K2.5?

Claude 3.7 Sonnet is developed by Anthropic while Kimi K2.5 is developed by Moonshot AI. Claude 3.7 Sonnet has a 200K token context window vs Kimi K2.5'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 K2.5?

It depends on your use case. Claude 3.7 Sonnet and Kimi K2.5 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 Kimi K2.5?

Claude 3.7 Sonnet costs $3/M input tokens and Kimi K2.5 costs $0.6/M input tokens. Kimi K2.5 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 K2.5 on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and Kimi K2.5 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 Kimi K2.5?

Claude 3.7 Sonnet is developed by Anthropic while Kimi K2.5 is developed by Moonshot AI. Claude 3.7 Sonnet has a 200K token context window vs Kimi K2.5'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 K2.5?

It depends on your use case. Claude 3.7 Sonnet and Kimi K2.5 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 Kimi K2.5?

Claude 3.7 Sonnet costs $3/M input tokens and Kimi K2.5 costs $0.6/M input tokens. Kimi K2.5 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 K2.5 on Rival?

This page shows a side-by-side comparison of Claude 3.7 Sonnet and Kimi K2.5 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 Kimi K2.5: Which Is Better?

Updated Jan 2026

Our Verdict

Claude 3.7 Sonnet

Kimi K2.5

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

Kimi K2.5 is 5.0x 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 K2.5

Input

$0.60

5.0× cheaper

Output

$3.00

5.0× cheaper

Kimi K2.5 is cheaper on both — 5.0× input, 5.0× output

Writing DNA

Style Comparison

Similarity

38%

Claude 3.7 Sonnet

Kimi K2.5

62%Vocabulary61%

35wSentence Length21w

0.99Hedging0.55

1.2Bold4.9

4.3Lists2.8

0.00Emoji0.01

1.78Headings0.56

0.23Transitions0.17

Based on 13 + 20 text responses

Research

What we learned reading every model

Claude 3.7 Sonnet and Kimi K2.5 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 Jan 2026

Our Verdict

Claude 3.7 Sonnet

Kimi K2.5

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

Kimi K2.5 is 5.0x 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 K2.5

Input

$0.60

5.0× cheaper

Output

$3.00

5.0× cheaper

Kimi K2.5 is cheaper on both — 5.0× input, 5.0× output

Writing DNA

Style Comparison

Similarity

38%

Claude 3.7 Sonnet

Kimi K2.5

62%Vocabulary61%

35wSentence Length21w

0.99Hedging0.55

1.2Bold4.9

4.3Lists2.8

0.00Emoji0.01

1.78Headings0.56

0.23Transitions0.17

Based on 13 + 20 text responses

Research

What we learned reading every model

Claude 3.7 Sonnet and Kimi K2.5 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