GLM-5.3-Flash

GLM-5.3-Flash is an open-weights LLM from Z.ai, announced 26 Aug 2026. It costs $0.15 per 1M input tokens and $0.50 per 1M output tokens. Its context window is 1M tokens. It has 320B parameters.

Input

$0.15

per 1M tokens

Cache write

—

per 1M tokens

Cache read

$0.03

per 1M tokens

Output

$0.50

per 1M tokens

Context window

1M

tokens

Parameters

320B

total

Docs

docs.z.ai/guides/vlm/glm-5.3-flash ↗

Our story

Our story →

Facts last updated 13 Nov 2026, from Z.ai’s own pages.