Claude Sonnet 5.5 vs GLM 4.5
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in 4 of 4 shared categories: General LLM, Reasoning, Math, and Long context.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
GLM 4.5
It used to be. Was SOTA in General LLM.
| Category | Claude Sonnet 5.5 | GLM 4.5 |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #107 · #107 in General LLM Margin 72.78911564625851 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #99 · #99 in Reasoning Margin 68.4931506849315 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #31 · #31 in Math Margin 66.66666666666666 Epoch AI benchmarking hub · Aug 3, 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 | #103 · #103 in Long context Margin 70.06802721088435 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 | — |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
GLM 4.5: $1 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
GLM 4.5: open weights.
General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in General LLM at #27 against #107.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in Reasoning at #18 against #99.
Math: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in Math at #4 against #31.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in Long context at #11 against #103.
Claude Sonnet 5.5 or GLM 4.5?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in 4 of 4 shared categories: General LLM, Reasoning, Math, and Long context.
Claude Sonnet 5.5 or GLM 4.5 for General LLM?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in General LLM at #27 against #107.
Claude Sonnet 5.5 or GLM 4.5 for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in Reasoning at #18 against #99.
Claude Sonnet 5.5 or GLM 4.5 for Math?
As of Oct 14, 2026, Claude Sonnet 5.5 leads GLM 4.5 in Math at #4 against #31.