Is GPT OSS 20B or GPT-OSS-120B cheaper?

GPT OSS 20B and GPT-OSS-120B have comparable output pricing.

Which has the larger context window, GPT OSS 20B or GPT-OSS-120B?

GPT OSS 20B has the larger context window (131K tokens).

GPT OSS 20B vs GPT-OSS-120B

Both have similar output pricing, while GPT OSS 20B offers a larger context window. Choose GPT OSS 20B or GPT-OSS-120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT OSS 20B	GPT-OSS-120B
Provider	Nvidia	Nvidia
Input / 1M tokens	$0.00	$0.00
Output / 1M tokens	$0.00	$0.00
Context window	131K	128K
Parameters	21B	117B
Open weights	Yes	Yes
Released	Aug 2025	Aug 2025

GPT OSS 20B 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.