Z.ai’s GLM 5.3 is now available on Amazon Bedrock. According to AWS, the model is a 753B-parameter mixture-of-experts system built for coding and long-horizon agentic tasks. The post explains how to invoke the model using OpenAI-compatible APIs, reduce cost and latency through prompt caching, and run an authorized security test with the open-source Strix agent.
Why it matters
Availability on Amazon Bedrock gives AWS users access to a large mixture-of-experts model aimed at coding and agentic workflows without separate integration. OpenAI-compatible APIs and prompt caching are highlighted as ways to ease adoption and manage cost and latency.
Who should care
Developers and teams building coding or agentic applications on AWS, particularly those interested in using the model with OpenAI-compatible tooling or running security tests with the Strix agent.