Compare · 2026-10-14

Claude Fable 5.1 vs GLM 5.1

As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

CategoryClaude Fable 5.1GLM 5.1
General LLM
#6 · Was SOTA · General LLM
Margin 4.08163265306122
LMArena leaderboard dataset · Oct 13, 2026
#37 · #37 in General LLM
Margin 25.17006802721089
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#5 · Was SOTA · Reasoning
Margin 4.109589041095887
LMArena leaderboard dataset · Oct 13, 2026
#36 · #36 in Reasoning
Margin 25.342465753424662
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—
#35 · #35 in Science
Margin —
Epoch AI benchmarking hub · Apr 7, 2026
Coding
#3 · Near-SOTA · Coding
Margin 18.181818181818187
Terminal-Bench Harbor Hub · Oct 6, 2026
#— · Not enough data
Margin —
Epoch AI benchmarking hub · Apr 7, 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
#46 · Was SOTA · Coding › Web dev
Margin 42.05607476635514
LMArena leaderboard dataset · Oct 13, 2026
Long context
#6 · Was SOTA · Long context
Margin 4.08163265306122
LMArena leaderboard dataset · Oct 13, 2026
#36 · Was SOTA · Long context
Margin 24.48979591836735
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
#38 · #38 in Factuality
Margin 29.104477611940297
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)
#3 · #3 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Sep 1, 2026
—
Price per 1M tokens

Claude Fable 5.1: $20 per 1M blended tokens.

GLM 5.1: $2.0425 per 1M blended tokens.

Open weights

Claude Fable 5.1: closed weights.

GLM 5.1: open weights.

Which to pick

General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in General LLM at #6 against #37.

Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in Reasoning at #5 against #36.

Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in Coding › Web dev at #5 against #46.

Long context: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in Long context at #6 against #36.

Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in Factuality at #1 against #38.

Claude Fable 5.1 · GLM 5.1

Claude Fable 5.1 or GLM 5.1?

As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Fable 5.1 or GLM 5.1 for General LLM?

As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in General LLM at #6 against #37.

Claude Fable 5.1 or GLM 5.1 for Reasoning?

As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in Reasoning at #5 against #36.

Claude Fable 5.1 or GLM 5.1 for Coding › Web dev?

As of Oct 14, 2026, Claude Fable 5.1 leads GLM 5.1 in Coding › Web dev at #5 against #46.