What is the difference between Gemini Pro 1.0 and xAI: Grok 4 Fast (free)?

Gemini Pro 1.0 is developed by Google AI while xAI: Grok 4 Fast (free) is developed by xAI. Gemini Pro 1.0 has a 33K token context window vs xAI: Grok 4 Fast (free)'s 2.0M. You can compare their actual outputs across 27 challenges on Rival to see how they differ in practice.

Which is better, Gemini Pro 1.0 or xAI: Grok 4 Fast (free)?

It depends on your use case. Gemini Pro 1.0 and xAI: Grok 4 Fast (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 27 challenges so you can judge which fits your needs best.

How much does Gemini Pro 1.0 cost compared to xAI: Grok 4 Fast (free)?

Gemini Pro 1.0 costs $0.5/M input tokens and xAI: Grok 4 Fast (free) costs $0/M input tokens. xAI: Grok 4 Fast (free) is $0.50/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 Gemini Pro 1.0 and xAI: Grok 4 Fast (free) on Rival?

This page shows a side-by-side comparison of Gemini Pro 1.0 and xAI: Grok 4 Fast (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 Gemini Pro 1.0 and xAI: Grok 4 Fast (free)?

Gemini Pro 1.0 is developed by Google AI while xAI: Grok 4 Fast (free) is developed by xAI. Gemini Pro 1.0 has a 33K token context window vs xAI: Grok 4 Fast (free)'s 2.0M. You can compare their actual outputs across 27 challenges on Rival to see how they differ in practice.

Which is better, Gemini Pro 1.0 or xAI: Grok 4 Fast (free)?

It depends on your use case. Gemini Pro 1.0 and xAI: Grok 4 Fast (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 27 challenges so you can judge which fits your needs best.

How much does Gemini Pro 1.0 cost compared to xAI: Grok 4 Fast (free)?

Gemini Pro 1.0 costs $0.5/M input tokens and xAI: Grok 4 Fast (free) costs $0/M input tokens. xAI: Grok 4 Fast (free) is $0.50/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 Gemini Pro 1.0 and xAI: Grok 4 Fast (free) on Rival?

This page shows a side-by-side comparison of Gemini Pro 1.0 and xAI: Grok 4 Fast (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.

Gemini Pro 1.0 vs xAI: Grok 4 Fast (free): Which Is Better?

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Gemini Pro 1.0Runner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Gemini Pro 1.0

Input

$0.50

Output

$1.50

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

68%

Gemini Pro 1.0 uses 3.8x more bold

Gemini Pro 1.0

xAI: Grok 4 Fast (free)

61%Vocabulary65%

13wSentence Length13w

0.41Hedging0.56

5.3Bold1.4

5.4Lists2.5

0.00Emoji0.00

0.46Headings1.58

0.38Transitions0.28

Based on 13 + 14 text responses

Research

What we learned reading every model

Gemini Pro 1.0 and xAI: Grok 4 Fast (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

Gemini Pro 1.0 vs MiniMax M3New provider

Gemini Pro 1.0 vs Claude Sonnet 4New provider

Gemini Pro 1.0 vs xAI: Grok 4Cross-provider

Updated Sep 2025

Our Verdict

xAI: Grok 4 Fast (free)

Gemini Pro 1.0Runner-up

No community votes yet. On paper, xAI: Grok 4 Fast (free) has the edge — newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

Gemini Pro 1.0

Input

$0.50

Output

$1.50

xAI: Grok 4 Fast (free)

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

68%

Gemini Pro 1.0 uses 3.8x more bold

Gemini Pro 1.0

xAI: Grok 4 Fast (free)

61%Vocabulary65%

13wSentence Length13w

0.41Hedging0.56

5.3Bold1.4

5.4Lists2.5

0.00Emoji0.00

0.46Headings1.58

0.38Transitions0.28

Based on 13 + 14 text responses

Research

What we learned reading every model

Gemini Pro 1.0 and xAI: Grok 4 Fast (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

Gemini Pro 1.0 vs MiniMax M3New provider

Gemini Pro 1.0 vs Claude Sonnet 4New provider

Gemini Pro 1.0 vs xAI: Grok 4Cross-provider