What is the difference between Gemini 1.5 Pro and Gemini 3 Pro Preview?

Both are developed by Google AI but target different use cases. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

Which is better, Gemini 1.5 Pro or Gemini 3 Pro Preview?

It depends on your use case. Gemini 1.5 Pro and Gemini 3 Pro Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

How can I compare Gemini 1.5 Pro and Gemini 3 Pro Preview on Rival?

This page shows a side-by-side comparison of Gemini 1.5 Pro and Gemini 3 Pro Preview 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 1.5 Pro and Gemini 3 Pro Preview?

Both are developed by Google AI but target different use cases. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

Which is better, Gemini 1.5 Pro or Gemini 3 Pro Preview?

It depends on your use case. Gemini 1.5 Pro and Gemini 3 Pro Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

How can I compare Gemini 1.5 Pro and Gemini 3 Pro Preview on Rival?

This page shows a side-by-side comparison of Gemini 1.5 Pro and Gemini 3 Pro Preview 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 1.5 Pro vs Gemini 3 Pro Preview: Which Is Better?

Updated Nov 2025

Our Verdict

Gemini 3 Pro Preview

Gemini 1.5 ProRunner-up

No community votes yet. On paper, Gemini 3 Pro Preview has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

Gemini 1.5 Pro

Input

$3.50

Output

$10.50

Gemini 3 Pro Preview

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

58%

Gemini 3 Pro Preview uses 11.1x more headings

Gemini 1.5 Pro

Gemini 3 Pro Preview

61%Vocabulary58%

15wSentence Length17w

0.80Hedging0.37

3.7Bold7.7

3.3Lists4.8

0.00Emoji0.00

0.08Headings0.90

0.09Transitions0.25

Based on 8 + 23 text responses

Research

What we learned reading every model

Gemini 1.5 Pro and Gemini 3 Pro Preview 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 1.5 Pro vs MiniMax M3New provider

Gemini 1.5 Pro vs Llama 4 MaverickNew provider

Gemini 1.5 Pro vs GPT-5New provider

Updated Nov 2025

Our Verdict

Gemini 3 Pro Preview

Gemini 1.5 ProRunner-up

No community votes yet. On paper, Gemini 3 Pro Preview has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

Gemini 1.5 Pro

Input

$3.50

Output

$10.50

Gemini 3 Pro Preview

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

58%

Gemini 3 Pro Preview uses 11.1x more headings

Gemini 1.5 Pro

Gemini 3 Pro Preview

61%Vocabulary58%

15wSentence Length17w

0.80Hedging0.37

3.7Bold7.7

3.3Lists4.8

0.00Emoji0.00

0.08Headings0.90

0.09Transitions0.25

Based on 8 + 23 text responses

Research

What we learned reading every model

Gemini 1.5 Pro and Gemini 3 Pro Preview 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 1.5 Pro vs MiniMax M3New provider

Gemini 1.5 Pro vs Llama 4 MaverickNew provider

Gemini 1.5 Pro vs GPT-5New provider