Gemini 3.8 Flash vs GLM 5.3 Flash
As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in 7 of 10 shared categories: General LLM, Reasoning, Science, Long context, Vision, Factuality, and Abstraction (ARC).
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); 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 | Gemini 3.8 Flash | GLM 5.3 Flash |
|---|---|---|
| General LLM | #7 · Near-SOTA · General LLM Margin 3.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in General LLM Margin 18.085106382978722 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #6 · Near-SOTA · Reasoning Margin 3.723404255319153 LMArena leaderboard dataset · Oct 13, 2026 | #27 · #27 in Reasoning Margin 14.893617021276597 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 | #34 · #34 in Science Margin — Epoch AI benchmarking hub · Aug 20, 2026 |
| Coding | #15 · #15 in Coding Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 | #10 · #10 in Coding Margin 50 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #15 · #15 in Coding › Agentic Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 | #10 · #10 in Coding › Agentic Margin 50 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #29 · #29 in Coding › Web dev Margin 22.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Coding › Web dev Margin 18.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #5 · Near-SOTA · Long context Margin 2.659574468085111 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Long context Margin 18.61702127659575 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #15 · #15 in Vision Margin 42.10526315789474 Epoch AI benchmarking hub · Sep 2, 2026 | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Aug 20, 2026 |
| Factuality | #19 · #19 in Factuality Margin 11.6279069767442 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Factuality Margin 20.34883720930233 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 | #14 · #14 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 20, 2026 |
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
GLM 5.3 Flash: $0.2375 per 1M blended tokens.
Gemini 3.8 Flash: closed weights.
GLM 5.3 Flash: open weights.
General LLM: As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in General LLM at #7 against #34.
Reasoning: As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Reasoning at #6 against #27.
Science: As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Science at #4 against #34.
Coding: As of Oct 15, 2026, GLM 5.3 Flash leads Gemini 3.8 Flash in Coding at #10 against #15.
Coding › Agentic: As of Oct 15, 2026, GLM 5.3 Flash leads Gemini 3.8 Flash in Coding › Agentic at #10 against #15.
Coding › Web dev: As of Oct 15, 2026, GLM 5.3 Flash leads Gemini 3.8 Flash in Coding › Web dev at #24 against #29.
Long context: As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Long context at #5 against #35.
Vision: As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Vision at #15 against #29.
Factuality: As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Factuality at #19 against #34.
Abstraction (ARC): As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Abstraction (ARC) at #1 against #14.
Gemini 3.8 Flash · GLM 5.3 Flash
Gemini 3.8 Flash or GLM 5.3 Flash?
As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in 7 of 10 shared categories: General LLM, Reasoning, Science, Long context, Vision, Factuality, and Abstraction (ARC).
Gemini 3.8 Flash or GLM 5.3 Flash for General LLM?
As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in General LLM at #7 against #34.
Gemini 3.8 Flash or GLM 5.3 Flash for Reasoning?
As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Reasoning at #6 against #27.
Gemini 3.8 Flash or GLM 5.3 Flash for Science?
As of Oct 15, 2026, Gemini 3.8 Flash leads GLM 5.3 Flash in Science at #4 against #34.