Is GLM-4.5-Air or GLM-5.2 cheaper?

GLM-4.5-Air is cheaper on output tokens ($1.10 vs $4.40 per 1M).

Which has the larger context window, GLM-4.5-Air or GLM-5.2?

GLM-5.2 has the larger context window (1M tokens).

GLM-4.5-Air vs GLM-5.2

GLM-4.5-Air is cheaper on output tokens, while GLM-5.2 offers a larger context window. Choose GLM-4.5-Air or GLM-5.2 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-4.5-Air	GLM-5.2
Provider	Zhipu AI	Zhipu AI
Input / 1M tokens	$0.20	$1.40
Output / 1M tokens	$1.10	$4.40
Context window	131K	1M
Parameters	—	—
Open weights	Yes	No
Released	Jul 2025	Jun 2026

GLM-4.5-Air details →GLM-5.2 details →

FAQ

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