Is GPT-4o Mini or OpenAI GPT OSS 120B cheaper?

OpenAI GPT OSS 120B is cheaper on output tokens ($0.30 vs $0.75 per 1M).

Which has the larger context window, GPT-4o Mini or OpenAI GPT OSS 120B?

Both models offer a similar context window.

GPT-4o Mini vs OpenAI GPT OSS 120B

OpenAI GPT OSS 120B is cheaper on output tokens. Choose GPT-4o Mini or OpenAI GPT OSS 120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-4o Mini	OpenAI GPT OSS 120B
Provider	Venice AI	Venice AI
Input / 1M tokens	$0.19	$0.07
Output / 1M tokens	$0.75	$0.30
Context window	128K	128K
Parameters	—	117B
Open weights	No	Yes
Released	Feb 2026	Nov 2025

GPT-4o Mini 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.