What is the difference between GPT OSS 20B and NVIDIA Nemotron 3 Super (free)?

GPT OSS 20B is developed by OpenAI while NVIDIA Nemotron 3 Super (free) is developed by NVIDIA. GPT OSS 20B has a 131K token context window vs NVIDIA Nemotron 3 Super (free)'s 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT OSS 20B or NVIDIA Nemotron 3 Super (free)?

It depends on your use case. GPT OSS 20B and NVIDIA Nemotron 3 Super (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How can I compare GPT OSS 20B and NVIDIA Nemotron 3 Super (free) on Rival?

This page shows a side-by-side comparison of GPT OSS 20B and NVIDIA Nemotron 3 Super (free) across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Mar 2026

GPT OSS 20BvsNVIDIA Nemotron 3 Super (free)

NVIDIA Nemotron 3 Super (free) has a larger context window than GPT OSS 20B (262K tokens vs 131K tokens).

GPT OSS 20B and NVIDIA Nemotron 3 Super (free) compared across 53 shared prompts
Spec	GPT OSS 20B	NVIDIA Nemotron 3 Super (free)
Input price	$0.02/M tokens	—
Output price	$0.1/M tokens	—
Context window	131K tokens	262K tokens
Parameters	21B (3.6B active)	12B active (120B total)
Weights	Open	Open
Free API (OpenRouter)	No	Yes (1 provider)
Released	Aug 2025	Mar 2026