Grok 4.5 vs Kimi K3
As of Oct 15, 2026, Grok 4.5 leads Kimi K3 in 1 of 8 shared categories: Science.
Grok 4.5
#14 Best recorded rank: #14 in Science, as of Oct 15, 2026.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
| Category | Grok 4.5 | Kimi K3 |
|---|---|---|
| General LLM | #45 · #45 in General LLM Margin 23.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in General LLM Margin 6.914893617021278 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #44 · #44 in Reasoning Margin 23.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Reasoning Margin 4.255319148936167 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 | #14 · #14 in Science Margin — Epoch AI benchmarking hub · Jul 8, 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 | #36 · #36 in Coding › Web dev Margin 28 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · Coding › Web dev Margin 8.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #41 · #41 in Long context Margin 21.808510638297875 LMArena leaderboard dataset · Oct 13, 2026 | #8 · Was SOTA · Long context Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 8, 2026 | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 |
| Factuality | #30 · #30 in Factuality Margin 18.023255813953483 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Factuality Margin 13.372093023255815 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #21 · #21 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 8, 2026 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
Grok 4.5: $3 per 1M blended tokens.
Kimi K3: $4.109999999999999 per 1M blended tokens.
Grok 4.5: closed weights.
Kimi K3: open weights.
General LLM: As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in General LLM at #13 against #45.
Reasoning: As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Reasoning at #7 against #44.
Science: As of Oct 15, 2026, Grok 4.5 leads Kimi K3 in Science at #14 against #17.
Coding › Web dev: As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Coding › Web dev at #12 against #36.
Long context: As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Long context at #8 against #41.
Vision: As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Vision at #22 against #29.
Factuality: As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Factuality at #22 against #30.
Abstraction (ARC): As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Abstraction (ARC) at #8 against #21.
Grok 4.5 or Kimi K3?
As of Oct 15, 2026, Grok 4.5 leads Kimi K3 in 1 of 8 shared categories: Science.
Grok 4.5 or Kimi K3 for General LLM?
As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in General LLM at #13 against #45.
Grok 4.5 or Kimi K3 for Reasoning?
As of Oct 15, 2026, Kimi K3 leads Grok 4.5 in Reasoning at #7 against #44.
Grok 4.5 or Kimi K3 for Science?
As of Oct 15, 2026, Grok 4.5 leads Kimi K3 in Science at #14 against #17.