Claude Fable 5.1 vs Grok 4.5
As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in 9 of 9 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Grok 4.5
#14 Best recorded rank: #14 in Science, as of Oct 14, 2026.
| Category | Claude Fable 5.1 | Grok 4.5 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #36 · #36 in General LLM Margin 24.48979591836735 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Reasoning Margin 26.027397260273972 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 | — | #14 · #14 in Science Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #19 · #19 in Coding › Agentic Margin 95.45454545454545 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 | #34 · #34 in Coding › Web dev Margin 30.8411214953271 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Long context Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 8, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Factuality Margin 20.14925373134328 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #21 · #21 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
Claude Fable 5.1: $20 per 1M blended tokens.
Grok 4.5: $3 per 1M blended tokens.
Claude Fable 5.1: closed weights.
Grok 4.5: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in General LLM at #6 against #36.
Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Reasoning at #5 against #37.
Coding: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Coding at #3 against #19.
Coding › Agentic: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Coding › Agentic at #3 against #19.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Coding › Web dev at #5 against #34.
Long context: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Long context at #6 against #35.
Vision: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Vision at #6 against #29.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Factuality at #1 against #26.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Abstraction (ARC) at #3 against #21.
Claude Fable 5.1 or Grok 4.5?
As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in 9 of 9 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1 or Grok 4.5 for General LLM?
As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in General LLM at #6 against #36.
Claude Fable 5.1 or Grok 4.5 for Reasoning?
As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Reasoning at #5 against #37.
Claude Fable 5.1 or Grok 4.5 for Coding?
As of Oct 14, 2026, Claude Fable 5.1 leads Grok 4.5 in Coding at #3 against #19.