Claude Opus 4.8 vs GLM 4.5
As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
GLM 4.5
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 4.8 | GLM 4.5 |
|---|---|---|
| General LLM | #20 · #20 in General LLM Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #107 · #107 in General LLM Margin 72.78911564625851 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 7.534246575342465 LMArena leaderboard dataset · Oct 13, 2026 | #99 · #99 in Reasoning Margin 68.4931506849315 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in Math Margin 66.66666666666666 Epoch AI benchmarking hub · Aug 3, 2025 |
| Science | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 | — |
| Coding | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #12 · #12 in Coding › Agentic Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #33 · Was SOTA · Coding › Web dev Margin 29.90654205607477 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #10 · Was SOTA · Long context Margin 6.802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #103 · #103 in Long context Margin 70.06802721088435 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 | — |
| Factuality | #21 · #21 in Factuality Margin 16.417910447761187 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 | — |
Claude Opus 4.8: $10 per 1M blended tokens.
GLM 4.5: $1 per 1M blended tokens.
Claude Opus 4.8: closed weights.
GLM 4.5: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in General LLM at #20 against #107.
Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in Reasoning at #10 against #99.
Long context: As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in Long context at #10 against #103.
Claude Opus 4.8 or GLM 4.5?
As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Opus 4.8 or GLM 4.5 for General LLM?
As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in General LLM at #20 against #107.
Claude Opus 4.8 or GLM 4.5 for Reasoning?
As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in Reasoning at #10 against #99.
Claude Opus 4.8 or GLM 4.5 for Long context?
As of Oct 14, 2026, Claude Opus 4.8 leads GLM 4.5 in Long context at #10 against #103.