Claude Fable 5 vs Grok 4.5
As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in 9 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
Grok 4.5
#14 Best recorded rank: #14 in Science, as of Oct 15, 2026.
| Category | Claude Fable 5 | Grok 4.5 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #45 · #45 in General LLM Margin 23.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.1276595744680833 LMArena leaderboard dataset · Oct 13, 2026 | #44 · #44 in Reasoning Margin 23.93617021276596 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 | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #14 · #14 in Science Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 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 | #19 · Was SOTA · Coding › Web dev Margin 14.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 | #36 · #36 in Coding › Web dev Margin 28 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #41 · #41 in Long context Margin 21.808510638297875 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 8, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 4.6511627906976685 LMArena leaderboard dataset · Oct 13, 2026 | #30 · #30 in Factuality Margin 18.023255813953483 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #21 · #21 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 8, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
Grok 4.5: $3 per 1M blended tokens.
Claude Fable 5: closed weights.
Grok 4.5: closed weights.
General LLM: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in General LLM at #3 against #45.
Reasoning: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Reasoning at #3 against #44.
Science: As of Oct 15, 2026, Grok 4.5 leads Claude Fable 5 in Science at #14 against #56.
Coding: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Coding at #6 against #19.
Coding › Agentic: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Coding › Agentic at #6 against #19.
Coding › Web dev: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Coding › Web dev at #19 against #36.
Long context: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Long context at #3 against #41.
Vision: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Vision at #5 against #29.
Factuality: As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Factuality at #7 against #30.
Abstraction (ARC): As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Abstraction (ARC) at #1 against #21.
Claude Fable 5 or Grok 4.5?
As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in 9 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5 or Grok 4.5 for General LLM?
As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in General LLM at #3 against #45.
Claude Fable 5 or Grok 4.5 for Reasoning?
As of Oct 15, 2026, Claude Fable 5 leads Grok 4.5 in Reasoning at #3 against #44.
Claude Fable 5 or Grok 4.5 for Science?
As of Oct 15, 2026, Grok 4.5 leads Claude Fable 5 in Science at #14 against #56.