Claude Sonnet 5 vs Kimi K3
As of Oct 14, 2026, Claude Sonnet 5 leads Kimi K3 in 0 of 6 shared categories.
Claude Sonnet 5
#19 Best current rank: #19 in Coding, as of Oct 14, 2026.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
| Category | Claude Sonnet 5 | Kimi K3 |
|---|---|---|
| General LLM | #39 · #39 in General LLM Margin 26.530612244897952 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in General LLM Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #34 · #34 in Reasoning Margin 23.972602739726028 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 | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Jun 30, 2026 | #17 · #17 in Science Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
| Coding | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 |
| Coding › Agentic | #19 · #19 in Coding › Agentic Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #38 · #38 in Coding › Web dev Margin 34.57943925233644 LMArena leaderboard dataset · Oct 13, 2026 | #11 · Was SOTA · Coding › Web dev Margin 9.34579439252336 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #31 · #31 in Long context Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 | #8 · Was SOTA · Long context Margin 5.442176870748298 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 |
| Factuality | #47 · #47 in Factuality Margin 35.82089552238806 LMArena leaderboard dataset · Oct 13, 2026 | #19 · #19 in Factuality Margin 14.925373134328368 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
Claude Sonnet 5: $4.000000000000001 per 1M blended tokens.
Kimi K3: $4.125 per 1M blended tokens.
Claude Sonnet 5: closed weights.
Kimi K3: open weights.
General LLM: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in General LLM at #13 against #39.
Reasoning: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Reasoning at #7 against #34.
Science: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Science at #17 against #32.
Coding › Web dev: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Coding › Web dev at #11 against #38.
Long context: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Long context at #8 against #31.
Factuality: As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Factuality at #19 against #47.
Claude Sonnet 5 or Kimi K3?
As of Oct 14, 2026, Claude Sonnet 5 leads Kimi K3 in 0 of 6 shared categories.
Claude Sonnet 5 or Kimi K3 for General LLM?
As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in General LLM at #13 against #39.
Claude Sonnet 5 or Kimi K3 for Reasoning?
As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Reasoning at #7 against #34.
Claude Sonnet 5 or Kimi K3 for Science?
As of Oct 14, 2026, Kimi K3 leads Claude Sonnet 5 in Science at #17 against #32.