Is GLM-5.3 or GLM-5.1 cheaper?

GLM-5.3 and GLM-5.1 have comparable output pricing.

Which has the larger context window, GLM-5.3 or GLM-5.1?

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

GLM-5.3 vs GLM-5.1

Both have similar output pricing, while GLM-5.3 offers a larger context window. Choose GLM-5.3 or GLM-5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-5.3	GLM-5.1
Provider	SCNet Token Plan	SCNet Token Plan
Input / 1M tokens	$0.00	$0.00
Output / 1M tokens	$0.00	$0.00
Context window	1M	200K
Parameters	—	—
Open weights	Yes	Yes
Released	Aug 2026	Apr 2026

GLM-5.3 details →GLM-5.1 details →

FAQ

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