GLM 5.3 vs GLM 5.3 Flash
As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in 8 of 8 shared categories: General LLM, Reasoning, Science, Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.
GLM 5.3
Yes. Yes on General LLM (open weights); Reasoning (best per dollar). Not the overall leader.
GLM 5.3 Flash
Yes. Yes on Coding (best per dollar); Coding › Agentic (best per dollar). Not the overall leader.
| Category | GLM 5.3 | GLM 5.3 Flash |
|---|---|---|
| General LLM | #23 · #23 in General LLM Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 | #30 · #30 in General LLM Margin 20.40816326530613 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #19 · #19 in Reasoning Margin 13.698630136986296 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in Reasoning Margin 18.493150684931507 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 | #28 · #28 in Science Margin — Epoch AI benchmarking hub · Aug 14, 2026 | #34 · #34 in Science Margin — Epoch AI benchmarking hub · Aug 20, 2026 |
| Coding | #7 · #7 in Coding Margin 36.36363636363637 Terminal-Bench Harbor Hub · Oct 6, 2026 | #10 · #10 in Coding Margin 50 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #7 · #7 in Coding › Agentic Margin 36.36363636363637 Terminal-Bench Harbor Hub · Oct 6, 2026 | #10 · #10 in Coding › Agentic Margin 50 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #18 · #18 in Coding › Web dev Margin 15.887850467289724 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Coding › Web dev Margin 19.626168224299064 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #27 · #27 in Long context Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #30 · #30 in Long context Margin 20.40816326530613 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Aug 20, 2026 |
| Factuality | #27 · #27 in Factuality Margin 20.895522388059703 LMArena leaderboard dataset · Oct 13, 2026 | #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 |
GLM 5.3: $1.275 per 1M blended tokens.
GLM 5.3 Flash: $0.2375 per 1M blended tokens.
GLM 5.3: open weights.
GLM 5.3 Flash: open weights.
General LLM: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in General LLM at #23 against #30.
Reasoning: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Reasoning at #19 against #26.
Science: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Science at #28 against #34.
Coding: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Coding at #7 against #10.
Coding › Agentic: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Coding › Agentic at #7 against #10.
Coding › Web dev: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Coding › Web dev at #18 against #22.
Long context: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Long context at #27 against #30.
Factuality: As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Factuality at #27 against #30.
GLM 5.3 or GLM 5.3 Flash?
As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in 8 of 8 shared categories: General LLM, Reasoning, Science, Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.
GLM 5.3 or GLM 5.3 Flash for General LLM?
As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in General LLM at #23 against #30.
GLM 5.3 or GLM 5.3 Flash for Reasoning?
As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Reasoning at #19 against #26.
GLM 5.3 or GLM 5.3 Flash for Science?
As of Oct 15, 2026, GLM 5.3 leads GLM 5.3 Flash in Science at #28 against #34.