What is the difference between Gemini 3.5 Flash and Solar Pro 3?

Gemini 3.5 Flash is developed by Google AI while Solar Pro 3 is developed by Upstage. Gemini 3.5 Flash has a 1.0M token context window vs Solar Pro 3's 128K. You can compare their actual outputs across 39 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3.5 Flash or Solar Pro 3?

It depends on your use case. Gemini 3.5 Flash and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 39 challenges so you can judge which fits your needs best.

How much does Gemini 3.5 Flash cost compared to Solar Pro 3?

Gemini 3.5 Flash costs $1.5/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.50/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 3.5 Flash and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of Gemini 3.5 Flash and Solar Pro 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 3.5 Flash and Solar Pro 3?

Gemini 3.5 Flash is developed by Google AI while Solar Pro 3 is developed by Upstage. Gemini 3.5 Flash has a 1.0M token context window vs Solar Pro 3's 128K. You can compare their actual outputs across 39 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3.5 Flash or Solar Pro 3?

It depends on your use case. Gemini 3.5 Flash and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 39 challenges so you can judge which fits your needs best.

How much does Gemini 3.5 Flash cost compared to Solar Pro 3?

Gemini 3.5 Flash costs $1.5/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.50/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 3.5 Flash and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of Gemini 3.5 Flash and Solar Pro 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 3.5 Flash vs Solar Pro 3: Which Is Better?

Updated May 2026

Our Verdict

Gemini 3.5 Flash

Solar Pro 3Runner-up

No community votes yet. On paper, Gemini 3.5 Flash has the edge — newer, bigger context window, major provider backing.

Too close to call

What do Gemini 3.5 Flash and Solar Pro 3 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Gemini 3.5 Flash

Input

$1.50

Output

$9.00

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

48%

Solar Pro 3 uses 17.3x more emoji

Gemini 3.5 Flash

Solar Pro 3

59%Vocabulary50%

18wSentence Length21w

0.16Hedging0.42

4.4Bold6.5

3.0Lists2.2

0.00Emoji0.17

0.89Headings0.56

0.11Transitions0.12

Based on 27 + 18 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Solar Pro 3 vs Ox AlphaNew provider

Solar Pro 3 vs MiniMax M3New provider

Solar Pro 3 vs Muse Spark 1.1New provider

Updated May 2026

Our Verdict

Gemini 3.5 Flash

Solar Pro 3Runner-up

No community votes yet. On paper, Gemini 3.5 Flash has the edge — newer, bigger context window, major provider backing.

Too close to call

What do Gemini 3.5 Flash and Solar Pro 3 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Gemini 3.5 Flash

Input

$1.50

Output

$9.00

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

48%

Solar Pro 3 uses 17.3x more emoji

Gemini 3.5 Flash

Solar Pro 3

59%Vocabulary50%

18wSentence Length21w

0.16Hedging0.42

4.4Bold6.5

3.0Lists2.2

0.00Emoji0.17

0.89Headings0.56

0.11Transitions0.12

Based on 27 + 18 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Solar Pro 3 vs Ox AlphaNew provider

Solar Pro 3 vs MiniMax M3New provider

Solar Pro 3 vs Muse Spark 1.1New provider