Claude Sonnet 5.5 vs GLM 5.2
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in 5 of 6 shared categories: Reasoning, Science, Coding › Web dev, 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 5.2
It used to be. Was SOTA in Coding › Web dev.
| Category | Claude Sonnet 5.5 | GLM 5.2 |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in General LLM Margin 17.687074829931973 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #30 · #30 in Reasoning Margin 21.23287671232876 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | #23 · #23 in Science Margin — Epoch AI benchmarking hub · Jun 16, 2026 |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 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 | #23 · #23 in Coding › Web dev Margin 20.560747663551396 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Long context Margin 17.006802721088434 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 | #31 · #31 in Factuality Margin 23.88059701492537 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #29 · #29 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 16, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
GLM 5.2: $1.7875 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
GLM 5.2: open weights.
General LLM: As of Oct 14, 2026, GLM 5.2 leads Claude Sonnet 5.5 in General LLM at #26 against #27.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Reasoning at #18 against #30.
Science: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Science at #3 against #23.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Coding › Web dev at #3 against #23.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Long context at #11 against #25.
Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Factuality at #16 against #31.
Claude Sonnet 5.5 or GLM 5.2?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in 5 of 6 shared categories: Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5 or GLM 5.2 for General LLM?
As of Oct 14, 2026, GLM 5.2 leads Claude Sonnet 5.5 in General LLM at #26 against #27.
Claude Sonnet 5.5 or GLM 5.2 for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Reasoning at #18 against #30.
Claude Sonnet 5.5 or GLM 5.2 for Science?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 5.2 in Science at #3 against #23.