Claude Fable 5.1 vs Grok 4.1
As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Fable 5.1
Yes. SOTA in Factuality (tied).
Grok 4.1
#53 Best current rank: #53 in General LLM, as of Oct 15, 2026.
| Category | Claude Fable 5.1 | Grok 4.1 |
|---|---|---|
| General LLM | #6 · Near-SOTA · General LLM Margin 3.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 | #53 · #53 in General LLM Margin 28.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Near-SOTA · Reasoning Margin 3.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 | #68 · #68 in Reasoning Margin 36.702127659574465 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 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 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 3.200000000000003 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #6 · Near-SOTA · Long context Margin 3.1914893617021107 LMArena leaderboard dataset · Oct 13, 2026 | #82 · #82 in Long context Margin 43.61702127659574 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | — |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #103 · #103 in Factuality Margin 60.46511627906977 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | — |
Claude Fable 5.1: $20 per 1M blended tokens.
Grok 4.1: price per 1M tokens is unset in the catalog.
Claude Fable 5.1: closed weights.
Grok 4.1: closed weights.
General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in General LLM at #6 against #53.
Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in Reasoning at #5 against #68.
Long context: As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in Long context at #6 against #82.
Factuality: As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in Factuality at #1 against #103.
Claude Fable 5.1 or Grok 4.1?
As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Fable 5.1 or Grok 4.1 for General LLM?
As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in General LLM at #6 against #53.
Claude Fable 5.1 or Grok 4.1 for Reasoning?
As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in Reasoning at #5 against #68.
Claude Fable 5.1 or Grok 4.1 for Long context?
As of Oct 15, 2026, Claude Fable 5.1 leads Grok 4.1 in Long context at #6 against #82.