Is GLM-5.3-Flash or GLM-5 cheaper?

GLM-5.3-Flash is cheaper on output tokens ($0.50 vs $3.20 per 1M).

Which has the larger context window, GLM-5.3-Flash or GLM-5?

GLM-5.3-Flash has the larger context window (1M tokens).

GLM-5.3-Flash vs GLM-5

GLM-5.3-Flash is cheaper on output tokens, while GLM-5.3-Flash offers a larger context window. Choose GLM-5.3-Flash or GLM-5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-5.3-Flash	GLM-5
Provider	Z.AI	Z.AI
Input / 1M tokens	$0.15	$1.00
Output / 1M tokens	$0.50	$3.20
Context window	1M	205K
Parameters	—	744B
Open weights	Yes	Yes
Released	Aug 2026	Feb 2026

GLM-5.3-Flash details →GLM-5 details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.