Is GLM 5.3 FlashX or GLM 5.2 (Free) cheaper?

GLM 5.2 (Free) is cheaper on output tokens ($0.00 vs $1.25 per 1M).

Which has the larger context window, GLM 5.3 FlashX or GLM 5.2 (Free)?

Both models offer a similar context window.

GLM 5.3 FlashX vs GLM 5.2 (Free)

GLM 5.2 (Free) is cheaper on output tokens. Choose GLM 5.3 FlashX or GLM 5.2 (Free) based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 5.3 FlashX	GLM 5.2 (Free)
Provider	ZenMux	ZenMux
Input / 1M tokens	$0.38	$0.00
Output / 1M tokens	$1.25	$0.00
Context window	1M	1M
Parameters	—	—
Open weights	Yes	Yes
Released	Aug 2026	Jun 2026

GLM 5.3 FlashX details →GLM 5.2 (Free) details →

FAQ

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