Claude Fable 5 vs GPT-5.6 Sol
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in 8 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
GPT-5.6 Sol
Close. Near-SOTA in Vision, rank #3.
| Category | Claude Fable 5 | GPT-5.6 Sol |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #17 · #17 in General LLM Margin 11.564625850340136 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Reasoning Margin 8.904109589041099 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 | #13 · #13 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #9 · #9 in Coding Margin 45.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #9 · #9 in Coding › Agentic Margin 45.45454545454545 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 | #21 · Was SOTA · Coding › Web dev Margin 18.691588785046733 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Long context Margin 8.84353741496598 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #3 · Near-SOTA · Vision Margin 10.526315789473685 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #14 · #14 in Factuality Margin 11.194029850746276 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.
Claude Fable 5: closed weights.
GPT-5.6 Sol: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in General LLM at #3 against #17.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Reasoning at #3 against #12.
Science: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Fable 5 in Science at #13 against #56.
Coding: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Coding at #6 against #9.
Coding › Agentic: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Coding › Agentic at #6 against #9.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Coding › Web dev at #17 against #21.
Long context: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Long context at #3 against #13.
Vision: As of Oct 14, 2026, GPT-5.6 Sol leads Claude Fable 5 in Vision at #3 against #5.
Factuality: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Factuality at #7 against #14.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Abstraction (ARC) at #1 against #3.
Claude Fable 5 or GPT-5.6 Sol?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in 8 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5 or GPT-5.6 Sol for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in General LLM at #3 against #17.
Claude Fable 5 or GPT-5.6 Sol for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.6 Sol in Reasoning at #3 against #12.
Claude Fable 5 or GPT-5.6 Sol for Science?
As of Oct 14, 2026, GPT-5.6 Sol leads Claude Fable 5 in Science at #13 against #56.