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

OpenAI GPT OSS 120B is cheaper on output tokens ($0.25 vs $0.85 per 1M).

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

Both models offer a similar context window.

GLM 4.5 Air vs OpenAI GPT OSS 120B

OpenAI GPT OSS 120B is cheaper on output tokens. Choose GLM 4.5 Air 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 Air	OpenAI GPT OSS 120B
Provider	NovitaAI	NovitaAI
Input / 1M tokens	$0.13	$0.05
Output / 1M tokens	$0.85	$0.25
Context window	131K	131K
Parameters	—	117B
Open weights	Yes	Yes
Released	Oct 2025	Aug 2025

GLM 4.5 Air 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.