Kimi K3 vs Mistral Medium 3.5
As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
Mistral Medium 3.5
#82 Best current rank: #82 in General LLM, as of Oct 14, 2026.
| Category | Kimi K3 | Mistral Medium 3.5 |
|---|---|---|
| General LLM | #13 · #13 in General LLM Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 | #82 · #82 in General LLM Margin 55.78231292517007 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #7 · #7 in Reasoning Margin 5.479452054794521 LMArena leaderboard dataset · Oct 13, 2026 | #86 · #86 in Reasoning Margin 59.58904109589041 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 | #17 · #17 in Science Margin — Epoch AI benchmarking hub · Jul 16, 2026 | — |
| Coding | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #11 · Was SOTA · Coding › Web dev Margin 9.34579439252336 LMArena leaderboard dataset · Oct 13, 2026 | #99 · #99 in Coding › Web dev Margin 91.58878504672897 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #8 · Was SOTA · Long context Margin 5.442176870748298 LMArena leaderboard dataset · Oct 13, 2026 | #93 · #93 in Long context Margin 63.265306122448976 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #19 · #19 in Factuality Margin 14.925373134328368 LMArena leaderboard dataset · Oct 13, 2026 | #84 · #84 in Factuality Margin 63.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 | — |
Kimi K3: $4.125 per 1M blended tokens.
Mistral Medium 3.5: $3 per 1M blended tokens.
Kimi K3: open weights.
Mistral Medium 3.5: open weights.
General LLM: As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in General LLM at #13 against #82.
Reasoning: As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in Reasoning at #7 against #86.
Coding › Web dev: As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in Coding › Web dev at #11 against #99.
Long context: As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in Long context at #8 against #93.
Factuality: As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in Factuality at #19 against #84.
Kimi K3 or Mistral Medium 3.5?
As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Kimi K3 or Mistral Medium 3.5 for General LLM?
As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in General LLM at #13 against #82.
Kimi K3 or Mistral Medium 3.5 for Reasoning?
As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in Reasoning at #7 against #86.
Kimi K3 or Mistral Medium 3.5 for Coding › Web dev?
As of Oct 14, 2026, Kimi K3 leads Mistral Medium 3.5 in Coding › Web dev at #11 against #99.