Gemini 2.5 Pro vs GLM-4.6
Google Gemini 2.5 Pro | Z.ai GLM-4.6 | |
|---|---|---|
| Overview | ||
| Company | Z.ai | |
| Release date | Mar 25 2025 | Sep 30 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 355B |
Context window | — | 200k |
| 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% | 68%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% | — |
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 189 days before GLM-4.6 | |
Which is better: Gemini 2.5 Pro or GLM-4.6?
GLM-4.6 leads Gemini 2.5 Pro on 1 of the 1 benchmark they both report (SWE-Bench Verified). Gemini 2.5 Pro shipped 189 days before GLM-4.6, so benchmark comparisons should account for the intervening progress.
Gemini 2.5 Pro is proprietary, while GLM-4.6 is open weight.
On SWE-Bench Verified, GLM-4.6 leads at 68% vs Gemini 2.5 Pro at 59.6%.
Frequently asked questions
Gemini 2.5 Pro was released by Google on Mar 25 2025.
GLM-4.6 was released by Z.ai on Sep 30 2025.
GLM-4.6 leads on SWE-Bench Verified — Gemini 2.5 Pro 59.6% vs GLM-4.6 68%.
Gemini 2.5 Pro is a proprietary model released by Google. GLM-4.6 is an open weight model released by Z.ai.
Other comparisons
Gemini 2.5 Pro vs Claude Fable 5GLM-4.6 vs Claude Fable 5Gemini 2.5 Pro vs GPT-5.6 SolGLM-4.6 vs GPT-5.6 SolGemini 2.5 Pro vs Muse SparkGLM-4.6 vs Muse SparkGemini 2.5 Pro vs Grok 4.3 BetaGLM-4.6 vs Grok 4.3 BetaGemini 2.5 Pro vs DeepSeek-V4-ProGLM-4.6 vs DeepSeek-V4-ProGemini 2.5 Pro vs Mistral Medium 3.5GLM-4.6 vs Mistral Medium 3.5