Claude Opus 5.5 vs GLM 5
As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
GLM 5
It used to be. Was SOTA in Coding › Web dev.
| Category | Claude Opus 5.5 | GLM 5 |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #45 · #45 in General LLM Margin 30.612244897959187 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #46 · #46 in Reasoning Margin 32.1917808219178 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #47 · #47 in Science Margin — Epoch AI benchmarking hub · Feb 11, 2026 |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 11, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #62 · #62 in Coding › Web dev Margin 57.00934579439252 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #47 · #47 in Long context Margin 31.972789115646265 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | — |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #46 · #46 in Factuality Margin 35.07462686567165 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #47 · #47 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 11, 2026 |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
GLM 5: $0.9299999999999999 per 1M blended tokens.
Claude Opus 5.5: closed weights.
GLM 5: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in General LLM at #2 against #45.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Reasoning at #1 against #46.
Science: As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Science at #31 against #47.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Coding › Web dev at #1 against #62.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Long context at #1 against #47.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Factuality at #1 against #46.
Abstraction (ARC): As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Abstraction (ARC) at #1 against #47.
Claude Opus 5.5 or GLM 5?
As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Opus 5.5 or GLM 5 for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in General LLM at #2 against #45.
Claude Opus 5.5 or GLM 5 for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Reasoning at #1 against #46.
Claude Opus 5.5 or GLM 5 for Science?
As of Oct 14, 2026, Claude Opus 5.5 leads GLM 5 in Science at #31 against #47.