Comparing 2 models
Gemini 3.8 Flash vs GLM 5.2
Benchmarks through
Verdict
GLM 5.2 places higher on 2 of the 3 tasks where both are ranked. GLM 5.2 costs 24.2x less per input token. Only GLM 5.2 has open weights for self-hosting.
- Choose Gemini 3.8 Flash for Value LLM (#1).
- Choose GLM 5.2 for Cheapest Capable LLM (#2), Cheap LLM for High Volume (#2), you need to self-host.
Built from the published task rankings below; ranks come from each task's own weighted benchmarks, so a win on one task says nothing about another.
Measured head to head
Benchmarks both models were run on
| Evaluation | Gemini 3.8 Flash | GLM 5.2 | Source |
|---|---|---|---|
| Design Arena Coding | 1303 Elo | 1287 Elo | source · 2026-10-23 |
| Design Arena Full-stack Agent | 1244 Elo | 1241 Elo | source · 2026-10-22 |
| Design Arena UI | 1316 Elo | 1294 Elo | source · 2026-10-23 |
| Design Arena Web-app Agent | 1238 Elo | 1222 Elo | source · 2026-10-23 |
| Design Arena Website | 1300 Elo | 1285 Elo | source · 2026-10-23 |
| FrontierMath Tiers 1-3 (Epoch AI) | 68.4% ± 2.8 | 59.2% ± 3 | source · 2026-09-02 |
| GPQA Diamond (Epoch AI) | 95.4% ± 1.4 | 91.9% ± 1.6 | source · 2026-09-02 |
| LiveBench Agentic Coding | 54.2% | 51.8% | source · 2026-10-18 |
| LiveBench Coding | 72.5% | 79.7% | source · 2026-10-18 |
| LiveBench Data Analysis | 54.0% | 73.7% | source · 2026-10-18 |
| LiveBench Instruction Following | 81.4% | 62.3% | source · 2026-10-18 |
| LiveBench Language | 87.8% | 76.2% | source · 2026-10-18 |
| LiveBench Math | 91.6% | 89.8% | source · 2026-10-18 |
| LiveBench Reasoning | 89.3% | 78.6% | source · 2026-10-18 |
| LMArena Agent | 3.6 | 2.1 | source · 2026-10-20 |
| LMArena Agent Bash Recovery | -0.7 | 0.7 | source · 2026-10-08 |
| LMArena Agent Steerability | 1.3 | 1.3 | source · 2026-10-20 |
| LMArena Agent Task Outcome | 3.9 | 3.8 | source · 2026-10-20 |
| LMArena Agent Tool Hallucination | 0.6 | 0.7 | source · 2026-10-20 |
| LMArena Creative Writing | 1489 Elo | 1462 Elo | source · 2026-10-22 |
| LMArena Instruction Following | 1492 Elo | 1466 Elo | source · 2026-10-22 |
| LMArena Long Query | 1507 Elo | 1479 Elo | source · 2026-10-22 |
| LMArena Math | 1532 Elo | 1484 Elo | source · 2026-10-22 |
| LMArena Text | 1496 Elo | 1475 Elo | source · 2026-10-22 |
| LMArena Text Factuality | 1473 Elo | 1463 Elo | source · 2026-10-22 |
| LMArena WebDev | 1585 Elo | 1604 Elo | source · 2026-10-22 |
| OTIS Mock AIME (Epoch AI) | 98.9% ± 0.9 | 86.4% ± 4.2 | source · 2026-09-02 |
| SimpleQA Verified (Epoch AI) | 69.7% ± 1.5 | 34.2% ± 1.5 | source · 2026-09-02 |
Values are as published by each evaluator, in its own units; rows from different evaluators are not on a common scale.
task evidence
How they place when the question changes
Lower ranks are better. “Best” marks the strongest option in this shortlist for that task.