Gemini 1.5 Pro vs GLM-5.1
Google Gemini 1.5 Pro | Z.ai GLM-5.1 | |
|---|---|---|
| Overview | ||
| Company | Z.ai | |
| Release date | Feb 15 2024 | Apr 7 2026 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 744B |
Context window | — | 200k |
| Benchmarks | ||
Agentic terminal coding Terminal-Bench 2.0Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better. | — | 63.5% |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | — | 68% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 86.2% |
| Timeline | ||
| Release gap | Gemini 1.5 Pro shipped 782 days before GLM-5.1 | |
Which is better: Gemini 1.5 Pro or GLM-5.1?
Gemini 1.5 Pro and GLM-5.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 1.5 Pro shipped 782 days before GLM-5.1, so benchmark comparisons should account for the intervening progress.
Gemini 1.5 Pro is proprietary, while GLM-5.1 is open weight.
Direct benchmark comparisons are unavailable — Gemini 1.5 Pro and GLM-5.1 don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemini 1.5 Pro was released by Google on Feb 15 2024.
GLM-5.1 was released by Z.ai on Apr 7 2026.
Gemini 1.5 Pro is a proprietary model released by Google. GLM-5.1 is an open weight model released by Z.ai.
Other comparisons
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