Gemini 2.5 Pro vs GLM-4.5
Google Gemini 2.5 Pro | Z.ai GLM-4.5 | |
|---|---|---|
| Overview | ||
| Company | Z.ai | |
| Release date | Mar 25 2025 | Jul 28 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 355B |
Context window | — | 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. | 20% | — |
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. | 59.6% | 64.2%Best |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 86.4%Best | 79.1% |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | 68% | — |
| Timeline | ||
| Release gap | Gemini 2.5 Pro shipped 125 days before GLM-4.5 | |
Which is better: Gemini 2.5 Pro or GLM-4.5?
Gemini 2.5 Pro and GLM-4.5 are evenly matched across the 2 benchmarks they both report (SWE-Bench Verified, GPQA Diamond). Gemini 2.5 Pro shipped 125 days before GLM-4.5, so benchmark comparisons should account for the intervening progress.
Gemini 2.5 Pro is proprietary, while GLM-4.5 is open weight.
On SWE-Bench Verified, GLM-4.5 leads at 64.2% vs Gemini 2.5 Pro at 59.6%. On GPQA Diamond, Gemini 2.5 Pro leads at 86.4% vs GLM-4.5 at 79.1%.
Frequently asked questions
Gemini 2.5 Pro was released by Google on Mar 25 2025.
GLM-4.5 was released by Z.ai on Jul 28 2025.
GLM-4.5 leads on SWE-Bench Verified — Gemini 2.5 Pro 59.6% vs GLM-4.5 64.2%.
Gemini 2.5 Pro leads on GPQA Diamond — Gemini 2.5 Pro 86.4% vs GLM-4.5 79.1%.
Gemini 2.5 Pro is a proprietary model released by Google. GLM-4.5 is an open weight model released by Z.ai.