Z.ai

Introducing GLM-5.3-Flash - Leading capabilities at a highly competitive price - Natively multimodal with a 1M-token context window - A 320B-A18B model released under the MIT License - Previously previewed as Ox Alpha, running entirely on Chinese AI chips Blog: http://z.ai/blog/glm-5.3-flash Available now across all official platforms: Weights: http://huggingface.co/zai-org/GLM-5.3-Flash API: http://docs.z.ai/guides/llm/glm-5.3-flash Coding Plan: http://z.ai/subscribe ZCode: http://zcode.z.ai/en Chat: http://chat.z.ai AutoClaw: http://autoclaw.z.ai

GLM-5.3 is now open-weight. Our most capable model for agentic coding and cyber defense is now available to download, run, and customize. Weights: https://huggingface.co/zai-org/GLM-5.3 Tech blog: https://z.ai/blog/glm-5.3

We’re sharing how GLM-5.3 helped build and optimize the inference infrastructure serving GLM-5.3-Flash. The system went from its first successful run to production readiness in less than two weeks, with end-to-end throughput tripling relative to the initial baseline. The key was dense feedback: local correctness tests, execution traces, microbenchmarks, and end-to-end measurements that enabled targeted hypothesis testing rather than reliance on aggregate performance metrics alone. https://z.ai/blog/glm-built-its-inference-infrastructure

We’re still up.

More good news: GLM-5.3’s weights will be released tomorrow. https://huggingface.co/zai-org/GLM-5.3

GLM-5.3 API is now live. - Built for coding, defensive cybersecurity, and long-horizon agentic tasks - Priced the same as GLM-5.2 - Available via the official API and partner model gateways Get started: https://docs.z.ai/guides/llm/glm-5.3

GLM Coding Plan turns one year old today. To celebrate, we're giving every current subscriber a Reset Card. Use it to refill both your weekly and 5-hour quotas. Thanks for using GLM, helping shape it, and pushing it to its limits. - Personal plan: http://z.ai/manage-apikey/coding-plan/personal/usage - Team plan: http://z.ai/manage-apikey/coding-plan/team/usage-stats

The community has already built so many interesting projects with ZCode + GLM-5.3. To thank everyone for all the support, we’re turning Build Week into an ongoing series. From now to Aug 23 at 6 PM PT, we’re giving 50,000 new ZCode users 100M free GLM-5.3 tokens each.

Introducing GLM-Legal Built on GLM-5.3-Flash, GLM-Legal matches frontier models on mainstream legal benchmarks. Designed for real legal workflows: contract review, evidence analysis, compliance, and more. Tech Blog: http://z.ai/blog/glm-legal Apply for API Access: http://z.ai/consultation/legal Try AutoClaw: http://autoclaw.z.ai

GLM-5.3 is now available on Amazon Bedrock. Bring powerful coding and agentic capabilities to your enterprise. Get started: https://docs.aws.amazon.com/bedrock/latest/userguide/model-card-zai-glm-5-3.html