Claude Fable 5 vs DeepSeek V4.1 Flash
As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in 7 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
DeepSeek V4.1 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | Claude Fable 5 | DeepSeek V4.1 Flash |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #32 · #32 in General LLM Margin 17.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.1276595744680833 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Reasoning Margin 15.957446808510639 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 | #36 · #36 in Science Margin — Epoch AI benchmarking hub · Sep 9, 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 | #19 · Was SOTA · Coding › Web dev Margin 14.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 | #21 · #21 in Coding › Web dev Margin 16 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Long context Margin 19.68085106382979 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #21 · #21 in Vision Margin 57.89473684210526 Epoch AI benchmarking hub · Sep 9, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 4.6511627906976685 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 15.116279069767444 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 9, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
DeepSeek V4.1 Flash: $0.18836999999999998 per 1M blended tokens.
Claude Fable 5: closed weights.
DeepSeek V4.1 Flash: open weights.
General LLM: As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in General LLM at #3 against #32.
Reasoning: As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Reasoning at #3 against #29.
Science: As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude Fable 5 in Science at #36 against #56.
Coding › Web dev: As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Coding › Web dev at #19 against #21.
Long context: As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Long context at #3 against #37.
Vision: As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Vision at #5 against #21.
Factuality: As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Factuality at #7 against #25.
Abstraction (ARC): As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Abstraction (ARC) at #1 against #8.
Claude Fable 5 · DeepSeek V4.1 Flash
Claude Fable 5 or DeepSeek V4.1 Flash?
As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in 7 of 8 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5 or DeepSeek V4.1 Flash for General LLM?
As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in General LLM at #3 against #32.
Claude Fable 5 or DeepSeek V4.1 Flash for Reasoning?
As of Oct 15, 2026, Claude Fable 5 leads DeepSeek V4.1 Flash in Reasoning at #3 against #29.
Claude Fable 5 or DeepSeek V4.1 Flash for Science?
As of Oct 15, 2026, DeepSeek V4.1 Flash leads Claude Fable 5 in Science at #36 against #56.