Qwen1.5vsGLM-4.5
Qwen1.5 | GLM-4.5 | |
|---|---|---|
| Specifications | ||
Parameters | 72B | 355B |
Context window | 32k | 128k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 8% |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | — | 64.2% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 79.1% |
| Overview | ||
| Company | Qwen | Z.ai |
| Release date | Feb 4 2024 | Jul 28 2025 |
| Access | Open Weight | Open Weight |
Which is better: Qwen1.5 or GLM-4.5?
Qwen1.5 and GLM-4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Qwen1.5 shipped 540 days before GLM-4.5, so benchmark comparisons should account for the intervening progress.
Qwen1.5 has 72B parameters, while GLM-4.5 has 355B. Context windows are 32k (Qwen1.5) vs 128k (GLM-4.5).
Direct benchmark comparisons are unavailable — Qwen1.5 and GLM-4.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
Qwen1.5 was released by Qwen on Feb 4 2024.
GLM-4.5 was released by Z.ai on Jul 28 2025.
Qwen1.5 has a 32k context window; GLM-4.5 has 128k.