Claude Opus 4.6 vs GLM 5.1
As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
GLM 5.1
It used to be. Was SOTA in Reasoning.
| Category | Claude Opus 4.6 | GLM 5.1 |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in General LLM Margin 25.17006802721089 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #36 · #36 in Reasoning Margin 25.342465753424662 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #35 · #35 in Science Margin — Epoch AI benchmarking hub · Apr 7, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Apr 7, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | #46 · Was SOTA · Coding › Web dev Margin 42.05607476635514 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #36 · Was SOTA · Long context Margin 24.48979591836735 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in Factuality Margin 29.104477611940297 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
GLM 5.1: $2.0425 per 1M blended tokens.
Claude Opus 4.6: closed weights.
GLM 5.1: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in General LLM at #4 against #37.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Reasoning at #2 against #36.
Science: As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Science at #32 against #35.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Coding › Web dev at #35 against #46.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Long context at #2 against #36.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Factuality at #3 against #38.
Claude Opus 4.6 or GLM 5.1?
As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6 or GLM 5.1 for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in General LLM at #4 against #37.
Claude Opus 4.6 or GLM 5.1 for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Reasoning at #2 against #36.
Claude Opus 4.6 or GLM 5.1 for Science?
As of Oct 14, 2026, Claude Opus 4.6 leads GLM 5.1 in Science at #32 against #35.