Introducing GLM 5.3 on Amazon Bedrock

The company describes it as a 753-billion-parameter mixture-of-experts model for coding and long-horizon agentic tasks. The announcement points to invocation through OpenAI-compatible APIs and mentions prompt caching as a way to reduce cost and latency. It also describes an authorized security test using the open-source Strix agent. The supplied source excerpt establishes the availability announcement and the features AWS highlights; it does not provide benchmark results, measured savings, or independent validation of model performance.

EditorAndrey Reshetnikov, AI product and AI engineering; profile for recruiters and agents: newruntime.com/owner-profile.json