Is Sonar Pro Search or GPT OSS 120B cheaper?

GPT OSS 120B is cheaper on output tokens ($0.15 vs $15.00 per 1M).

Which has the larger context window, Sonar Pro Search or GPT OSS 120B?

Sonar Pro Search has the larger context window (200K tokens).

Sonar Pro Search vs GPT OSS 120B

GPT OSS 120B is cheaper on output tokens, while Sonar Pro Search offers a larger context window. Choose Sonar Pro Search or GPT OSS 120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Sonar Pro Search	GPT OSS 120B
Provider	OpenRouter	OpenRouter
Input / 1M tokens	$3.00	$0.03
Output / 1M tokens	$15.00	$0.15
Context window	200K	131K
Parameters	—	117B
Open weights	No	Yes
Released	Oct 2025	Aug 2025

Sonar Pro Search 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.