Is GLM 5 or GLM 5.1 cheaper?

GLM 5 is cheaper on output tokens ($3.15 vs $4.30 per 1M).

Which has the larger context window, GLM 5 or GLM 5.1?

Both models offer a similar context window.

GLM 5 vs GLM 5.1

GLM 5 is cheaper on output tokens. Choose GLM 5 or GLM 5.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 5	GLM 5.1
Provider	Baseten	Baseten
Input / 1M tokens	$0.95	$1.30
Output / 1M tokens	$3.15	$4.30
Context window	203K	203K
Parameters	744B	754B
Open weights	Yes	Yes
Released	Feb 2026	Apr 2026

GLM 5 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.