What is the difference between GPT-5.1 and NVIDIA Nemotron 3 Super (free)?

GPT-5.1 is developed by OpenAI while NVIDIA Nemotron 3 Super (free) is developed by NVIDIA. GPT-5.1 has a 400K token context window vs NVIDIA Nemotron 3 Super (free)'s 262K. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 or NVIDIA Nemotron 3 Super (free)?

It depends on your use case. GPT-5.1 and NVIDIA Nemotron 3 Super (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How can I compare GPT-5.1 and NVIDIA Nemotron 3 Super (free) on Rival?

This page shows a side-by-side comparison of GPT-5.1 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-5.1vsNVIDIA Nemotron 3 Super (free)

GPT-5.1 has a larger context window than NVIDIA Nemotron 3 Super (free) (400K tokens vs 262K tokens).

GPT-5.1 and NVIDIA Nemotron 3 Super (free) compared across 51 shared prompts
Spec	GPT-5.1	NVIDIA Nemotron 3 Super (free)
Input price	$1.25/M tokens	—
Output price	$10/M tokens	—
Context window	400K tokens	262K tokens
Weights	Closed	Open
Free API (OpenRouter)	No	Yes (1 provider)
Released	Nov 2025	Mar 2026