Is GLM-4.5 or OpenAI GPT OSS 120B cheaper?

OpenAI GPT OSS 120B is cheaper on output tokens ($0.25 vs $2.20 per 1M).

Which has the larger context window, GLM-4.5 or OpenAI GPT OSS 120B?

Both models offer a similar context window.

GLM-4.5 vs OpenAI GPT OSS 120B

OpenAI GPT OSS 120B is cheaper on output tokens. Choose GLM-4.5 or OpenAI GPT OSS 120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GLM-4.5	OpenAI GPT OSS 120B
Provider	NovitaAI	NovitaAI
Input / 1M tokens	$0.60	$0.05
Output / 1M tokens	$2.20	$0.25
Context window	131K	131K
Parameters	355B	117B
Open weights	Yes	Yes
Released	Jul 2025	Aug 2025

GLM-4.5 details →OpenAI GPT OSS 120B details →

FAQ

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