Claude Fable 5 vs Grok 4.3
As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, and Factuality.
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
Grok 4.3
#32 Best current rank: #32 in Vision, as of Oct 14, 2026.
| Category | Claude Fable 5 | Grok 4.3 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #67 · #67 in General LLM Margin 45.57823129251701 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #75 · #75 in Reasoning Margin 52.054794520547944 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 | #41 · #41 in Science Margin — Epoch AI benchmarking hub · Apr 17, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #17 · Was SOTA · Coding › Web dev Margin 14.953271028037378 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in Coding › Web dev Margin 78.50467289719626 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #77 · #77 in Long context Margin 52.38095238095237 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #32 · #32 in Vision Margin 97.36842105263158 Epoch AI benchmarking hub · Apr 17, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #87 · #87 in Factuality Margin 65.67164179104478 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | — |
Claude Fable 5: $20 per 1M blended tokens.
Grok 4.3: $1.5625000000000002 per 1M blended tokens.
Claude Fable 5: closed weights.
Grok 4.3: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in General LLM at #3 against #67.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in Reasoning at #3 against #75.
Science: As of Oct 14, 2026, Grok 4.3 leads Claude Fable 5 in Science at #41 against #56.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in Coding › Web dev at #17 against #85.
Long context: As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in Long context at #3 against #77.
Vision: As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in Vision at #5 against #32.
Factuality: As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in Factuality at #7 against #87.
Claude Fable 5 or Grok 4.3?
As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, and Factuality.
Claude Fable 5 or Grok 4.3 for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in General LLM at #3 against #67.
Claude Fable 5 or Grok 4.3 for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads Grok 4.3 in Reasoning at #3 against #75.
Claude Fable 5 or Grok 4.3 for Science?
As of Oct 14, 2026, Grok 4.3 leads Claude Fable 5 in Science at #41 against #56.