Is GLM 4.5 or GLM 5 cheaper?

GLM 4.5 is cheaper on output tokens ($2.46 vs $3.44 per 1M).

Which has the larger context window, GLM 4.5 or GLM 5?

GLM 5 has the larger context window (203K tokens).

GLM 4.5 vs GLM 5

GLM 4.5 is cheaper on output tokens, while GLM 5 offers a larger context window. Choose GLM 4.5 or GLM 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM 4.5	GLM 5
Provider	Cortecs	Cortecs
Input / 1M tokens	$0.67	$1.08
Output / 1M tokens	$2.46	$3.44
Context window	131K	203K
Parameters	355B	744B
Open weights	Yes	Yes
Released	Jul 2025	Feb 2026

GLM 4.5 details →GLM 5 details →

FAQ

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