Claude Fable 5.1 vs DeepSeek R1
As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
DeepSeek R1
It used to be. Was SOTA in General LLM.
| Category | Claude Fable 5.1 | DeepSeek R1 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #118 · Was SOTA · General LLM Margin 80.27210884353741 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #116 · Was SOTA · Reasoning Margin 80.13698630136986 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 | — | #90 · #90 in Science Margin — Epoch AI benchmarking hub · Jan 20, 2025 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 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 | — |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #123 · Was SOTA · Long context Margin 83.6734693877551 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | — |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #77 · #77 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 20, 2025 |
Claude Fable 5.1: $20 per 1M blended tokens.
DeepSeek R1: $1.15 per 1M blended tokens.
Claude Fable 5.1: closed weights.
DeepSeek R1: open weights.
General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in General LLM at #6 against #118.
Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in Reasoning at #5 against #116.
Long context: As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in Long context at #6 against #123.
Abstraction (ARC): As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in Abstraction (ARC) at #3 against #77.
Claude Fable 5.1 · DeepSeek R1
Claude Fable 5.1 or DeepSeek R1?
As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Abstraction (ARC).
Claude Fable 5.1 or DeepSeek R1 for General LLM?
As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in General LLM at #6 against #118.
Claude Fable 5.1 or DeepSeek R1 for Reasoning?
As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in Reasoning at #5 against #116.
Claude Fable 5.1 or DeepSeek R1 for Long context?
As of Oct 15, 2026, Claude Fable 5.1 leads DeepSeek R1 in Long context at #6 against #123.