Claude Sonnet 5.5 vs GLM 4.5 Air
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in 5 of 5 shared categories: General LLM, Reasoning, Math, Long context, and Factuality.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
GLM 4.5 Air
#32 Best current rank: #32 in Math, as of Oct 14, 2026.
| Category | Claude Sonnet 5.5 | GLM 4.5 Air |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #142 · #142 in General LLM Margin 96.59863945578232 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #140 · #140 in Reasoning Margin 96.57534246575342 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #32 · #32 in Math Margin 71.11111111111111 Epoch AI benchmarking hub · Jul 20, 2025 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | — |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #3 · Near-SOTA · Coding › Web dev Margin 1.8691588785046775 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #138 · #138 in Long context Margin 93.87755102040816 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | — |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #109 · #109 in Factuality Margin 82.08955223880596 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
GLM 4.5 Air: $0.31 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
GLM 4.5 Air: open weights.
General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in General LLM at #27 against #142.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in Reasoning at #18 against #140.
Math: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in Math at #4 against #32.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in Long context at #11 against #138.
Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in Factuality at #16 against #109.
Claude Sonnet 5.5 · GLM 4.5 Air
Claude Sonnet 5.5 or GLM 4.5 Air?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in 5 of 5 shared categories: General LLM, Reasoning, Math, Long context, and Factuality.
Claude Sonnet 5.5 or GLM 4.5 Air for General LLM?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in General LLM at #27 against #142.
Claude Sonnet 5.5 or GLM 4.5 Air for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in Reasoning at #18 against #140.
Claude Sonnet 5.5 or GLM 4.5 Air for Math?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 Air in Math at #4 against #32.