Claude Sonnet 4.6 vs Kimi K3
As of Oct 14, 2026, Claude Sonnet 4.6 leads Kimi K3 in 0 of 8 shared categories.
Claude Sonnet 4.6
It used to be. Was SOTA in Long context.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
| Category | Claude Sonnet 4.6 | Kimi K3 |
|---|---|---|
| General LLM | #32 · #32 in General LLM Margin 21.768707482993193 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in General LLM Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #20 · #20 in Reasoning Margin 14.38356164383562 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Reasoning Margin 5.479452054794521 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #50 · #50 in Science Margin — Epoch AI benchmarking hub · Feb 17, 2026 | #17 · #17 in Science Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 17, 2026 | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 |
| Coding › Web dev | #41 · #41 in Coding › Web dev Margin 37.38317757009346 LMArena leaderboard dataset · Oct 13, 2026 | #11 · Was SOTA · Coding › Web dev Margin 9.34579439252336 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #20 · Was SOTA · Long context Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #8 · Was SOTA · Long context Margin 5.442176870748298 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #23 · Was SOTA · Vision Margin 63.1578947368421 Epoch AI benchmarking hub · Feb 17, 2026 | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 |
| Factuality | #34 · #34 in Factuality Margin 26.11940298507463 LMArena leaderboard dataset · Oct 13, 2026 | #19 · #19 in Factuality Margin 14.925373134328368 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #23 · #23 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 17, 2026 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
Claude Sonnet 4.6: $6 per 1M blended tokens.
Kimi K3: $4.125 per 1M blended tokens.
Claude Sonnet 4.6: closed weights.
Kimi K3: open weights.
General LLM: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in General LLM at #13 against #32.
Reasoning: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Reasoning at #7 against #20.
Science: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Science at #17 against #50.
Coding › Web dev: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Coding › Web dev at #11 against #41.
Long context: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Long context at #8 against #20.
Vision: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Vision at #22 against #23.
Factuality: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Factuality at #19 against #34.
Abstraction (ARC): As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Abstraction (ARC) at #8 against #23.
Claude Sonnet 4.6 or Kimi K3?
As of Oct 14, 2026, Claude Sonnet 4.6 leads Kimi K3 in 0 of 8 shared categories.
Claude Sonnet 4.6 or Kimi K3 for General LLM?
As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in General LLM at #13 against #32.
Claude Sonnet 4.6 or Kimi K3 for Reasoning?
As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Reasoning at #7 against #20.
Claude Sonnet 4.6 or Kimi K3 for Science?
As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 4.6 in Science at #17 against #50.