Claude Fable 5.1 vs Kimi K3
As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in 7 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
| Category | Claude Fable 5.1 | Kimi K3 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in General LLM Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Reasoning Margin 5.479452054794521 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 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 | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #5 · Near-SOTA · Coding › Web dev Margin 3.738317757009341 LMArena leaderboard dataset · Oct 13, 2026 | #11 · Was SOTA · Coding › Web dev Margin 9.34579439252336 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #8 · Was SOTA · Long context Margin 5.442176870748298 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #19 · #19 in Factuality Margin 14.925373134328368 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
Claude Fable 5.1: $20 per 1M blended tokens.
Kimi K3: $4.125 per 1M blended tokens.
Claude Fable 5.1: closed weights.
Kimi K3: open weights.
General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in General LLM at #6 against #13.
Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Reasoning at #5 against #7.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Coding › Web dev at #5 against #11.
Long context: As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Long context at #6 against #8.
Vision: As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Vision at #6 against #22.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Factuality at #1 against #19.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Abstraction (ARC) at #3 against #8.
Claude Fable 5.1 or Kimi K3?
As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in 7 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1 or Kimi K3 for General LLM?
As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in General LLM at #6 against #13.
Claude Fable 5.1 or Kimi K3 for Reasoning?
As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Reasoning at #5 against #7.
Claude Fable 5.1 or Kimi K3 for Coding › Web dev?
As of Oct 14, 2026, Claude Fable 5.1 leads Kimi K3 in Coding › Web dev at #5 against #11.