What is the difference between xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free)?

xAI: Grok 4 Fast (free) is developed by xAI while NVIDIA Nemotron 3 Super (free) is developed by NVIDIA. xAI: Grok 4 Fast (free) has a 2.0M token context window vs NVIDIA Nemotron 3 Super (free)'s 262K. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, xAI: Grok 4 Fast (free) or NVIDIA Nemotron 3 Super (free)?

It depends on your use case. xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How can I compare xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free) on Rival?

This page shows a side-by-side comparison of xAI: Grok 4 Fast (free) 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.

What is the difference between xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free)?

xAI: Grok 4 Fast (free) is developed by xAI while NVIDIA Nemotron 3 Super (free) is developed by NVIDIA. xAI: Grok 4 Fast (free) has a 2.0M token context window vs NVIDIA Nemotron 3 Super (free)'s 262K. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, xAI: Grok 4 Fast (free) or NVIDIA Nemotron 3 Super (free)?

It depends on your use case. xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How can I compare xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free) on Rival?

This page shows a side-by-side comparison of xAI: Grok 4 Fast (free) 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.

xAI: Grok 4 Fast (free) vs NVIDIA Nemotron 3 Super (free): Which Is Better?

Updated Mar 2026

Our Verdict

xAI: Grok 4 Fast (free)

NVIDIA Nemotron 3 Super (free)

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call

API pricing

Cost per 1M tokens

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

NVIDIA Nemotron 3 Super (free)

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

39%

NVIDIA Nemotron 3 Super (free) uses 19.8x more emoji

xAI: Grok 4 Fast (free)

NVIDIA Nemotron 3 Super (free)

65%Vocabulary55%

13wSentence Length22w

0.56Hedging0.36

1.4Bold5.1

2.5Lists2.9

0.00Emoji0.20

1.58Headings0.64

0.28Transitions0.17

Based on 14 + 23 text responses

Research

What we learned reading every model

xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free) have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

xAI: Grok 4 Fast (free) vs MiniMax M3New provider

xAI: Grok 4 Fast (free) vs Claude Sonnet 4New provider

xAI: Grok 4 Fast (free) vs GPT-5New provider

Updated Mar 2026

Our Verdict

xAI: Grok 4 Fast (free)

NVIDIA Nemotron 3 Super (free)

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call

API pricing

Cost per 1M tokens

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

NVIDIA Nemotron 3 Super (free)

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

39%

NVIDIA Nemotron 3 Super (free) uses 19.8x more emoji

xAI: Grok 4 Fast (free)

NVIDIA Nemotron 3 Super (free)

65%Vocabulary55%

13wSentence Length22w

0.56Hedging0.36

1.4Bold5.1

2.5Lists2.9

0.00Emoji0.20

1.58Headings0.64

0.28Transitions0.17

Based on 14 + 23 text responses

Research

What we learned reading every model

xAI: Grok 4 Fast (free) and NVIDIA Nemotron 3 Super (free) have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

xAI: Grok 4 Fast (free) vs MiniMax M3New provider

xAI: Grok 4 Fast (free) vs Claude Sonnet 4New provider

xAI: Grok 4 Fast (free) vs GPT-5New provider