GLM 5.3 by Z.ai is now generally available on Amazon Bedrock
Today’s signal AWS What’s New recently reported GLM 5.3 by Z.ai is now generally available on Amazon Bedrock. Published context: October 5, 2026. Amazon Bedrock now supports GLM 5.3 from Z.ai, giving you a powerful new option for agentic coding and long-horizon software engineering work. Customers using GLM 5.3 on Amazon Bedrock have access to the latest open weight model with the AWS security and compliance posture. GLM 5.3 is Z.ai’s flagship model, a mixture-of-experts architecture with 753B total p ...