Is GLM 5.2 or GLM 5.1 cheaper?

GLM 5.1 is cheaper on output tokens ($4.30 vs $4.40 per 1M).

Which has the larger context window, GLM 5.2 or GLM 5.1?

GLM 5.1 has the larger context window (203K tokens).

GLM 5.2 vs GLM 5.1

GLM 5.1 is cheaper on output tokens, while GLM 5.1 offers a larger context window. Choose GLM 5.2 or GLM 5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 5.2	GLM 5.1
Provider	Baseten	Baseten
Input / 1M tokens	$1.40	$1.30
Output / 1M tokens	$4.40	$4.30
Context window	203K	203K
Parameters	—	754B
Open weights	Yes	Yes
Released	Jun 2026	Apr 2026

GLM 5.2 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.