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  2. Claude Sonnet 4 vs Kimi K2

2 charts

Claude Sonnet 4 vs Kimi K2

Every chart we tracked that puts them side by side. Open one to see the test, the source and how far it travelled.

Claude Sonnet 4Kimi K2
Arena leaderboard: GLM-5.1 Code Arena Ranking128x
Arena·Apr 2026
GLM-5.1 Code Arena Ranking
494.1K views2.6K likes0.6% eng.
Data
Epoch AI benchmark bar chart: AI model ECI scores
Epoch AI·Feb 2026
AI model ECI scores
82K views228 likes0.3% eng.
Data

Questions people ask

Is Claude Sonnet 4 better than Kimi K2?

2 charts we tracked put Claude Sonnet 4 and Kimi K2 side by side, from Arena, Epoch AI. Which wins depends on the benchmark; each chart below shows its own test.