What is the difference between Gemini 3 Flash Preview and xAI: Grok 4.3?

Gemini 3 Flash Preview is developed by Google AI while xAI: Grok 4.3 is developed by xAI. Gemini 3 Flash Preview has a 1.0M token context window vs xAI: Grok 4.3's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3 Flash Preview or xAI: Grok 4.3?

It depends on your use case. Gemini 3 Flash Preview and xAI: Grok 4.3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Gemini 3 Flash Preview cost compared to xAI: Grok 4.3?

Gemini 3 Flash Preview costs $0.5/M input tokens and xAI: Grok 4.3 costs $1.25/M input tokens. Gemini 3 Flash Preview is $0.75/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 3 Flash Preview and xAI: Grok 4.3 on Rival?

This page shows a side-by-side comparison of Gemini 3 Flash Preview and xAI: Grok 4.3 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 3 Flash Preview and xAI: Grok 4.3?

Gemini 3 Flash Preview is developed by Google AI while xAI: Grok 4.3 is developed by xAI. Gemini 3 Flash Preview has a 1.0M token context window vs xAI: Grok 4.3's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3 Flash Preview or xAI: Grok 4.3?

It depends on your use case. Gemini 3 Flash Preview and xAI: Grok 4.3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Gemini 3 Flash Preview cost compared to xAI: Grok 4.3?

Gemini 3 Flash Preview costs $0.5/M input tokens and xAI: Grok 4.3 costs $1.25/M input tokens. Gemini 3 Flash Preview is $0.75/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 3 Flash Preview and xAI: Grok 4.3 on Rival?

This page shows a side-by-side comparison of Gemini 3 Flash Preview and xAI: Grok 4.3 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 3 Flash Preview vs xAI: Grok 4.3: Which Is Better?

Updated May 2026

Our Verdict

Gemini 3 Flash Preview

xAI: Grok 4.3

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

Gemini 3 Flash Preview

Input

$0.50

2.5× cheaper

Output

$3.00

xAI: Grok 4.3

Input

$1.25

Output

$2.50

1.2× cheaper

Gemini 3 Flash Preview wins input (2.5× cheaper)·xAI: Grok 4.3 wins output (1.2× cheaper)

Writing DNA

Style Comparison

Similarity

48%

Gemini 3 Flash Preview uses 3.1x more bold

Gemini 3 Flash Preview

xAI: Grok 4.3

55%Vocabulary62%

18wSentence Length16w

0.42Hedging0.46

7.1Bold2.3

4.5Lists2.5

0.00Emoji0.00

0.84Headings0.34

0.07Transitions0.14

Based on 24 + 27 text responses

Research

What we learned reading every model

Gemini 3 Flash Preview and xAI: Grok 4.3 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 4.3 vs MiniMax M3New provider

xAI: Grok 4.3 vs GPT-5New provider

xAI: Grok 4.3 vs Claude Sonnet 4New provider

Updated May 2026

Our Verdict

Gemini 3 Flash Preview

xAI: Grok 4.3

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

Gemini 3 Flash Preview

Input

$0.50

2.5× cheaper

Output

$3.00

xAI: Grok 4.3

Input

$1.25

Output

$2.50

1.2× cheaper

Gemini 3 Flash Preview wins input (2.5× cheaper)·xAI: Grok 4.3 wins output (1.2× cheaper)

Writing DNA

Style Comparison

Similarity

48%

Gemini 3 Flash Preview uses 3.1x more bold

Gemini 3 Flash Preview

xAI: Grok 4.3

55%Vocabulary62%

18wSentence Length16w

0.42Hedging0.46

7.1Bold2.3

4.5Lists2.5

0.00Emoji0.00

0.84Headings0.34

0.07Transitions0.14

Based on 24 + 27 text responses

Research

What we learned reading every model

Gemini 3 Flash Preview and xAI: Grok 4.3 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 4.3 vs MiniMax M3New provider

xAI: Grok 4.3 vs GPT-5New provider

xAI: Grok 4.3 vs Claude Sonnet 4New provider