Kimi K3 vs Longcat Flash Chat
As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
Longcat Flash Chat
#139 Best current rank: #139 in Reasoning, as of Oct 15, 2026.
| Category | Kimi K3 | Longcat Flash Chat |
|---|---|---|
| General LLM | #13 · #13 in General LLM Margin 6.914893617021278 LMArena leaderboard dataset · Oct 13, 2026 | #150 · #150 in General LLM Margin 79.7872340425532 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #7 · #7 in Reasoning Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 | #139 · #139 in Reasoning Margin 74.46808510638297 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 | #12 · Was SOTA · Coding › Web dev Margin 8.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #8 · Was SOTA · Long context Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 | #174 · #174 in Long context Margin 92.55319148936171 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 | — |
| Factuality | #22 · #22 in Factuality Margin 13.372093023255815 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 | — |
Kimi K3: $4.0875 per 1M blended tokens.
Longcat Flash Chat: price per 1M tokens is unset in the catalog.
Kimi K3: open weights.
Longcat Flash Chat: open weights.
General LLM: As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in General LLM at #13 against #150.
Reasoning: As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in Reasoning at #7 against #139.
Long context: As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in Long context at #8 against #174.
Kimi K3 or Longcat Flash Chat?
As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Kimi K3 or Longcat Flash Chat for General LLM?
As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in General LLM at #13 against #150.
Kimi K3 or Longcat Flash Chat for Reasoning?
As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in Reasoning at #7 against #139.
Kimi K3 or Longcat Flash Chat for Long context?
As of Oct 15, 2026, Kimi K3 leads Longcat Flash Chat in Long context at #8 against #174.