What is the difference between Nemotron 3 Ultra and OpenAI o4-mini?

Nemotron 3 Ultra is developed by NVIDIA while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Nemotron 3 Ultra or OpenAI o4-mini?

It depends on your use case. Nemotron 3 Ultra and OpenAI o4-mini 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 much does Nemotron 3 Ultra cost compared to OpenAI o4-mini?

Nemotron 3 Ultra costs $0/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. Nemotron 3 Ultra is $1.10/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Nemotron 3 Ultra and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of Nemotron 3 Ultra and OpenAI o4-mini 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 Jun 2026

Nemotron 3 UltravsOpenAI o4-mini

Nemotron 3 Ultra is cheaper than OpenAI o4-mini at $0/M vs $1.1/M input tokens.

Nemotron 3 Ultra and OpenAI o4-mini compared across 53 shared prompts
Spec	Nemotron 3 Ultra	OpenAI o4-mini
Input price	Free	$1.1/M tokens
Output price	Free	$4.4/M tokens
Context window	1.0M tokens	—
Weights	Open	Closed
Free API (OpenRouter)	Yes (1 provider)	No
Released	Jun 2026	Apr 2025