GLM-4.5
GLM-4.5 made the “native agent model” an explicit family direction while releasing both base and chat weights.
FAMILY / Z.AI
GLM
Z.ai’s open model family, increasingly focused on reasoning, coding, and long-horizon agent engineering.
- First model
- 2025
- Models
- 7
- Latest
- GLM-5.3-Flash
01 / LINEAGE MAP
Model lineage
predecessor derived from
02 / GENERATIONS
What changed
GLM-4.7
The open successor to GLM-4.5 with continued gains in coding, reasoning, and agent tasks.
GLM-5
GLM-5 shifted long-horizon agent evaluation from single code generations toward complete engineering tasks.
GLM-5.1
A GLM-5 update for long-horizon work, designed to execute autonomously for hours within one task.
GLM-5.2
Extended context to 1M and optimized for large codebases, long documents, and project-scale agent work.
GLM-5.3
GLM-5.3 is a clear case of major agent gains coming from scaled post-training without changing the base model.
GLM-5.3-Flash
It uses a new base model and 1M context to deliver GLM-5 long-horizon agent capability at lower inference cost.