Claude 3 Opus vs GLM 5.3 Flash
As of Oct 14, 2026, Claude 3 Opus leads GLM 5.3 Flash in 1 of 2 shared categories: General LLM.
Claude 3 Opus
#9 Best recorded rank: #9 in General LLM, as of Oct 14, 2026.
GLM 5.3 Flash
Yes. Yes on Reasoning (best per dollar); Coding (best per dollar). Not the overall leader.
| Category | Claude 3 Opus | GLM 5.3 Flash |
|---|---|---|
| General LLM | #9 · #9 in General LLM Margin — LMArena leaderboard dataset · Sep 27, 2024 | #30 · #30 in General LLM Margin 20.40816326530613 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 7, 2024 | #26 · #26 in Reasoning Margin 18.493150684931507 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #138 · #138 in Science Margin — Epoch AI benchmarking hub · Feb 29, 2024 | #34 · #34 in Science Margin — Epoch AI benchmarking hub · Aug 20, 2026 |
| Coding | — | #10 · #10 in Coding Margin 50 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #10 · #10 in Coding › Agentic Margin 50 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | — | #22 · #22 in Coding › Web dev Margin 19.626168224299064 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | — | #30 · #30 in Long context Margin 20.40816326530613 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Aug 20, 2026 |
| Factuality | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 29, 2024 | #30 · #30 in Factuality Margin 23.13432835820896 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #14 · #14 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 20, 2026 |
Claude 3 Opus: price per 1M tokens is unset in the catalog.
GLM 5.3 Flash: $0.2375 per 1M blended tokens.
Claude 3 Opus: closed weights.
GLM 5.3 Flash: open weights.
General LLM: As of Oct 14, 2026, Claude 3 Opus leads GLM 5.3 Flash in General LLM at #9 against #30.
Science: As of Oct 14, 2026, GLM 5.3 Flash leads Claude 3 Opus in Science at #34 against #138.
Claude 3 Opus or GLM 5.3 Flash?
As of Oct 14, 2026, Claude 3 Opus leads GLM 5.3 Flash in 1 of 2 shared categories: General LLM.
Claude 3 Opus or GLM 5.3 Flash for General LLM?
As of Oct 14, 2026, Claude 3 Opus leads GLM 5.3 Flash in General LLM at #9 against #30.
Claude 3 Opus or GLM 5.3 Flash for Science?
As of Oct 14, 2026, GLM 5.3 Flash leads Claude 3 Opus in Science at #34 against #138.