Version comparison
| Version | Status | Positioning |
|---|---|---|
| GLM-5.3 | Current | Same base as 5.2, scaled-up post-training; strongest agentic-coding and automation scores in the family. |
| GLM-5.2 | Prior stable version | Existing integrations; use the upgrade comparison before switching. |
| GLM-5.1 and earlier | Legacy | Superseded; verify current provider support before relying on them. |
Deciding whether to upgrade
Reproduce your existing GLM-5.2 workload against GLM-5.3 on a fixed prompt set before switching production traffic — post-training changes can shift verbosity and tool-use behavior even when the base model is unchanged.
Ready to test the workflow?
Create account & add creditsFrequently asked questions
How is GLM-5.3 different from GLM-5.2?
GLM-5.3 uses the same base model as GLM-5.2 but adds scaled-up post-training, lifting agentic-coding scores while changing output length and tool-use behavior — see the full upgrade comparison before switching production traffic.
Where is the live GLM-5.3 model page?
The canonical model page with current OneInfer pricing, capabilities, and availability is /models/zai-org/GLM-5.3. This page is a focused facet of that entity, not a replacement for it.
How should I treat benchmark or price claims?
Check each claim’s provenance label and observed date. Vendor-reported and independently verified numbers are shown as separate evidence classes on this hub.
Put GLM-5.3 to work
Fund a controlled evaluation, start with a prepared prompt, and measure quality and cost on your own workload.