Core capabilities
- 1M-token context for long coding sessions
- Interleaved and turn-level preserved thinking
- Agentic coding with terminal and tool use
- Open weights plus managed API access
← Model indexMODEL PROFILE / glm-5-3
Z.ai / current
GLM-5.3
Z.ai's current open GLM generation, extending the family's coding and agent strengths.
Context1M
ModalityText · Image
AccessWeights · API
ReasoningReasoning
Where it fits.
Keeps GLM's turn-level thinking control while widening the context window and improving multilingual coding behaviour. GLM-5.3 moves the open GLM line forward with a 1M-token context, retaining interleaved and turn-level thinking while targeting agentic coding and multilingual reasoning.
Best-fit workflows
- Agentic coding
- Multilingual assistants
- Open-weight deployment
04 / OPERATIONSFrom evaluation
From evaluation
to production.
Deployment notes
Configure the GLM tool parser and supported reasoning parser. Preserve thinking explicitly for long coding runs, disable it for lightweight turns, and validate terminal permissions independently of model quality.
Watch before choosing
Preserved thinking depends on client support; an incompatible template removes most of the benefit. Serving examples require GLM-specific tool and reasoning parsers; generic templates degrade preserved-thinking behaviour.
05
Family & versions
- GLM-5.3Current open flagship
- GLM-4.7Previous generation
Specifications and positioning checked against provider documentation.
Open official source↗