Model dossier

Z.ai: GLM 5.3

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...

ProviderZ.ai Start comparison

Context1,310,720

Max output943,718

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Identity

Z.ai: GLM 5.3

Model ID: z-ai/glm-5.3
Canonical slug: z-ai/glm-5.3-20260816
Knowledge cutoff: n/a
Created: 8/18/2026

Capabilities

texttoolsstructured

Modalities

text->texttext

Capacity

Context1,310,720

Max output943,718

TokenizerOther