Claude Fable 5 vs GPT-6 Astra
As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | Claude Fable 5 | GPT-6 Astra |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in General LLM Margin 17.006802721088434 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #23 · #23 in Reasoning Margin 16.438356164383563 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #1 · SOTA · Math Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Science | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #2 · #2 in Science Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding › Agentic Margin 13.63636363636364 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 | #2 · Near-SOTA · Coding › Web dev Margin 0.9345794392523317 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Long context Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 19.402985074626883 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
GPT-6 Astra: $20 per 1M blended tokens.
Claude Fable 5: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in General LLM at #3 against #25.
Reasoning: As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in Reasoning at #3 against #23.
Science: As of Oct 15, 2026, GPT-6 Astra leads Claude Fable 5 in Science at #2 against #56.
Coding: As of Oct 15, 2026, GPT-6 Astra leads Claude Fable 5 in Coding at #2 against #6.
Coding › Agentic: As of Oct 15, 2026, GPT-6 Astra leads Claude Fable 5 in Coding › Agentic at #2 against #6.
Coding › Web dev: As of Oct 15, 2026, GPT-6 Astra leads Claude Fable 5 in Coding › Web dev at #2 against #17.
Long context: As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in Long context at #3 against #22.
Vision: As of Oct 15, 2026, GPT-6 Astra leads Claude Fable 5 in Vision at #1 against #5.
Factuality: As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in Factuality at #7 against #25.
Abstraction (ARC): As of Oct 15, 2026, Claude Fable 5 and GPT-6 Astra share #1 in Abstraction (ARC).
Claude Fable 5 or GPT-6 Astra?
As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Fable 5 or GPT-6 Astra for General LLM?
As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in General LLM at #3 against #25.
Claude Fable 5 or GPT-6 Astra for Reasoning?
As of Oct 15, 2026, Claude Fable 5 leads GPT-6 Astra in Reasoning at #3 against #23.
Claude Fable 5 or GPT-6 Astra for Science?
As of Oct 15, 2026, GPT-6 Astra leads Claude Fable 5 in Science at #2 against #56.