Zhipu (Z.AI)AdvancedOpen weightAvailable in FlowHunt
GLM-5.3-Flash
GLM-5.3-Flash is an advanced-tier AI model from Zhipu (Z.AI), released in August 2026. It is an open-weight mixture-of-experts model with 320B total and 18B active parameters, released under the MIT licence. The context window is 1M tokens.
Read moreShow less
With 18B parameters active per token out of 320B in total, GLM-5.3-Flash keeps the compute per token well below what its total size suggests. The MIT licence allows self-hosting, fine-tuning, and commercial use without per-token API fees.
GLM-5.3-Flash65.8%Mistral Large 4—No scoreClaude Sonnet 5.5—No score
#16of 27Verified
What to Use GLM-5.3-Flash For
Self-Hosted & Private Deployments
GLM-5.3-Flash is open-weight under the MIT licence. Run it on your own GPU hardware or private cloud to keep data in your environment or fine-tune it on proprietary datasets.
Cost-Conscious Serving of a Large Model
Only 18B of its 320B parameters are active per token, which lowers the compute needed for each request compared with a dense model of the same total size.
Long-Document & Codebase Analysis
With a 1M-token context window, it can take in entire repositories, long contracts, or extended histories in a single prompt.
Strengths and limitations
Strengths
+Open weights under the MIT licence
+Mixture-of-experts design with 18B active parameters
+Self-hosted and data-private deployments
+Very long documents and large codebases (1M context)
Limitations
−Self-hosting a 320B-parameter model needs substantial GPU memory
Use it in FlowHunt
Use GLM-5.3-Flash in any flow, next to your own tools and knowledge sources.
About Zhipu (Z.AI)Beijing, China · Founded 2019 · z.ai
Zhipu AI, also branded Z.ai, is a Beijing-based AI company founded in 2019 as a spin-out of Tsinghua University research. It develops the GLM family of models.
GLM-5.3-Flash is an advanced-tier AI model developed by Zhipu (Z.AI) and released in August 2026. It is a mixture-of-experts model with 320B total and 18B active parameters.
GLM-5.3-Flash is an open-weight model released under the MIT licence. Its weights are publicly available for download, self-hosting, and fine-tuning. Note that open-weight is not the same as open-source: the training code and data may not be fully public.
GLM-5.3-Flash supports a 1M-token context window, large enough to hold entire codebases, lengthy technical documents, or extended agentic sessions without truncation.
Yes — GLM-5.3-Flash is directly available in FlowHunt. You can use it to build AI agents, automated workflows, chatbots, and document processing pipelines without any additional setup.
Cookie Consent We use cookies to enhance your browsing experience and analyze our traffic. See our privacy policy.
