Review GLM 5.3 on key metrics including price, context length, throughput, and model features.
AuthorZ.ai
Context Length1.0M
Supports Tools
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves on GLM-5.2 in coding and in the balance between performance and token efficiency.