Claude Opus 4 vs Kimi K3
As of Oct 14, 2026, Claude Opus 4 leads Kimi K3 in 0 of 5 shared categories.
Claude Opus 4
It used to be. Was SOTA in Reasoning.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
| Category | Claude Opus 4 | Kimi K3 |
|---|---|---|
| General LLM | #102 · #102 in General LLM Margin 69.38775510204081 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in General LLM Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #97 · Was SOTA · Reasoning Margin 67.12328767123287 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Reasoning Margin 5.479452054794521 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #29 · #29 in Math Margin 62.22222222222222 Epoch AI benchmarking hub · May 22, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #91 · #91 in Science Margin — Epoch AI benchmarking hub · May 22, 2025 | #17 · #17 in Science Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · May 22, 2025 | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 |
| Coding › Web dev | — | #11 · Was SOTA · Coding › Web dev Margin 9.34579439252336 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #70 · #70 in Long context Margin 47.61904761904762 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 | — | #19 · #19 in Factuality Margin 14.925373134328368 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #69 · #69 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 22, 2025 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
Claude Opus 4: price per 1M tokens is unset in the catalog.
Kimi K3: $4.125 per 1M blended tokens.
Claude Opus 4: closed weights.
Kimi K3: open weights.
General LLM: As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in General LLM at #13 against #102.
Reasoning: As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in Reasoning at #7 against #97.
Science: As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in Science at #17 against #91.
Long context: As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in Long context at #8 against #70.
Abstraction (ARC): As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in Abstraction (ARC) at #8 against #69.
Claude Opus 4 or Kimi K3?
As of Oct 14, 2026, Claude Opus 4 leads Kimi K3 in 0 of 5 shared categories.
Claude Opus 4 or Kimi K3 for General LLM?
As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in General LLM at #13 against #102.
Claude Opus 4 or Kimi K3 for Reasoning?
As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in Reasoning at #7 against #97.
Claude Opus 4 or Kimi K3 for Science?
As of Oct 14, 2026, Kimi K3 leads Claude Opus 4 in Science at #17 against #91.