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

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 GPT OSS 120B?

GPT OSS 120B has the larger context window (131K tokens).

GLM-4.5-Air vs GPT OSS 120B

GPT OSS 120B is cheaper on output tokens, while GPT OSS 120B offers a larger context window. Choose GLM-4.5-Air or 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	GPT OSS 120B
Provider	LLM Gateway	LLM Gateway
Input / 1M tokens	$0.13	$0.05
Output / 1M tokens	$0.85	$0.25
Context window	131K	131K
Parameters	—	117B
Open weights	Yes	No
Released	Jul 2025	Aug 2025

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

FAQ

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