Is Claude 4.5 Sonnet or GLM 4.5 cheaper?

GLM 4.5 is cheaper on output tokens ($2.46 vs $16.30 per 1M).

Which has the larger context window, Claude 4.5 Sonnet or GLM 4.5?

Claude 4.5 Sonnet has the larger context window (200K tokens).

Claude 4.5 Sonnet vs GLM 4.5

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

Spec	Claude 4.5 Sonnet	GLM 4.5
Provider	Cortecs	Cortecs
Input / 1M tokens	$3.26	$0.67
Output / 1M tokens	$16.30	$2.46
Context window	200K	131K
Parameters	—	355B
Open weights	No	Yes
Released	Sep 2025	Jul 2025

Claude 4.5 Sonnet details →GLM 4.5 details →

FAQ

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