Claude 3.7 Sonnet vs Kimi K2
Compare Claude 3.7 Sonnet by Anthropic against Kimi K2 by Moonshot AI, in 25 community votes, kimi k2 wins 75% of head-to-head duels, tested across 55 shared challenges. Updated May 2026.
Which is better, Claude 3.7 Sonnet or Kimi K2?
Kimi K2 is the better choice overall, winning 75% of 25 blind community votes on Rival. Claude 3.7 Sonnet costs $3/M input tokens vs $0.57/M for Kimi K2. Compare their real outputs side by side below.
Key Differences Between Claude 3.7 Sonnet and Kimi K2
Claude 3.7 Sonnet is made by anthropic while Kimi K2 is from moonshotai. On pricing, Claude 3.7 Sonnet costs $3/M input tokens vs $0.57/M for Kimi K2. In community voting, In 25 community votes, Kimi K2 wins 75% of head-to-head duels.
In 25 community votes, Kimi K2 wins 75% of head-to-head duels. Kimi K2 leads in Reasoning, Web Design, Conversation. Based on blind community voting from the Rival open dataset of 25+ human preference judgments for this pair.
Per 1M tokens
Kimi K2 is cheaper on both — 5.3× input, 6.5× output
Pick Kimi K2. In 25 blind votes, Kimi K2 wins 75% of the time. That's not luck.
Kimi K2 particularly excels in Conversation, Reasoning, Web Design. Kimi K2 is 6.5x cheaper per token — worth considering if cost matters.
Style Comparison
Kimi K2 uses 68.5x more emoji
