What is the difference between Claude Opus 4 and NVIDIA Nemotron 3 Super (free)?

Claude Opus 4 is developed by Anthropic while NVIDIA Nemotron 3 Super (free) is developed by NVIDIA. Claude Opus 4 has a 200K 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, Claude Opus 4 or NVIDIA Nemotron 3 Super (free)?

It depends on your use case. Claude Opus 4 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 Claude Opus 4 and NVIDIA Nemotron 3 Super (free) on Rival?

This page shows a side-by-side comparison of Claude Opus 4 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

Claude Opus 4vsNVIDIA Nemotron 3 Super (free)

NVIDIA Nemotron 3 Super (free) has a larger context window than Claude Opus 4 (262K tokens vs 200K tokens).

Claude Opus 4 and NVIDIA Nemotron 3 Super (free) compared across 53 shared prompts
Spec	Claude Opus 4	NVIDIA Nemotron 3 Super (free)
Input price	$15/M tokens	—
Output price	$75/M tokens	—
Context window	200K tokens	262K tokens
Parameters	Not disclosed	12B active (120B total)
Weights	Closed	Open
Free API (OpenRouter)	No	Yes (1 provider)
Released	May 2025	Mar 2026