Claude Fable 5.1 vs DeepSeek V3.1
As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
DeepSeek V3.1
It used to be. Was SOTA in General LLM.
| Category | Claude Fable 5.1 | DeepSeek V3.1 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #95 · #95 in General LLM Margin 64.62585034013605 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #103 · #103 in Reasoning Margin 71.23287671232876 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 |
| 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 | #99 · #99 in Long context Margin 67.34693877551021 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 | — |
Claude Fable 5.1: $20 per 1M blended tokens.
DeepSeek V3.1: price per 1M tokens is unset in the catalog.
Claude Fable 5.1: closed weights.
DeepSeek V3.1: open weights.
General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in General LLM at #6 against #95.
Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in Reasoning at #5 against #103.
Long context: As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in Long context at #6 against #99.
Claude Fable 5.1 · DeepSeek V3.1
Claude Fable 5.1 or DeepSeek V3.1?
As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Fable 5.1 or DeepSeek V3.1 for General LLM?
As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in General LLM at #6 against #95.
Claude Fable 5.1 or DeepSeek V3.1 for Reasoning?
As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in Reasoning at #5 against #103.
Claude Fable 5.1 or DeepSeek V3.1 for Long context?
As of Oct 14, 2026, Claude Fable 5.1 leads DeepSeek V3.1 in Long context at #6 against #99.