Claude Fable 5.1 vs GLM 4.5 Air
As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in 5 of 5 shared categories: General LLM, Reasoning, Math, Long context, and Factuality.
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
GLM 4.5 Air
#32 Best current rank: #32 in Math, as of Oct 14, 2026.
| Category | Claude Fable 5.1 | GLM 4.5 Air |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #142 · #142 in General LLM Margin 96.59863945578232 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #140 · #140 in Reasoning Margin 96.57534246575342 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #32 · #32 in Math Margin 71.11111111111111 Epoch AI benchmarking hub · Jul 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 | #138 · #138 in Long context Margin 93.87755102040816 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 | #109 · #109 in Factuality Margin 82.08955223880596 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.
GLM 4.5 Air: $0.31 per 1M blended tokens.
Claude Fable 5.1: closed weights.
GLM 4.5 Air: open weights.
General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in General LLM at #6 against #142.
Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in Reasoning at #5 against #140.
Math: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in Math at #2 against #32.
Long context: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in Long context at #6 against #138.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in Factuality at #1 against #109.
Claude Fable 5.1 · GLM 4.5 Air
Claude Fable 5.1 or GLM 4.5 Air?
As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in 5 of 5 shared categories: General LLM, Reasoning, Math, Long context, and Factuality.
Claude Fable 5.1 or GLM 4.5 Air for General LLM?
As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in General LLM at #6 against #142.
Claude Fable 5.1 or GLM 4.5 Air for Reasoning?
As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in Reasoning at #5 against #140.
Claude Fable 5.1 or GLM 4.5 Air for Math?
As of Oct 14, 2026, Claude Fable 5.1 leads GLM 4.5 Air in Math at #2 against #32.