Zhipu GLM-5.3 Is Now Available in the Tabbit Browser!

Zhipu GLM-5.3 Is Now Available in the Tabbit Browser!

GLM-5.3 is Zhipu's latest open-source flagship model. Thanks to further post-training scaling, it delivers across-the-board gains in both coding and cybersecurity: up 50% versus GLM-5.2 on Zhipu's in-house Z.ai Code Bench, and ranking first among open-source models on public benchmarks including Terminal Bench 3.0 and Agents' Last Exam (CLI). In security tasks such as white-box code review and vulnerability discovery, GLM-5.3 performs on par with Mythos 5, showing strong potential for defensive cybersecurity scenarios.

Paired with the Tabbit browser, GLM-5.3 is more than a "chatbot" — it deeply understands complex problems, handling analysis, reasoning, code reading, solution design, long-document summarization, and content creation across multi-turn conversations. Whether you're stuck on a tricky development problem, need to make sense of technical material, or want to compare implementation paths, it delivers clear, complete, and deeper answers.

The Tabbit browser now supports GLM-5.3 — click "Switch Model" at the bottom right of the dialog to try it.