What is the difference between Meta: Muse Spark 1.1 and Solar Pro 3?

Meta: Muse Spark 1.1 is developed by Meta AI while Solar Pro 3 is developed by Upstage. Meta: Muse Spark 1.1 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, Meta: Muse Spark 1.1 or Solar Pro 3?

It depends on your use case. Meta: Muse Spark 1.1 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 Meta: Muse Spark 1.1 cost compared to Solar Pro 3?

Meta: Muse Spark 1.1 costs $1.25/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.25/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 Meta: Muse Spark 1.1 and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of Meta: Muse Spark 1.1 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 Meta: Muse Spark 1.1 and Solar Pro 3?

Meta: Muse Spark 1.1 is developed by Meta AI while Solar Pro 3 is developed by Upstage. Meta: Muse Spark 1.1 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, Meta: Muse Spark 1.1 or Solar Pro 3?

It depends on your use case. Meta: Muse Spark 1.1 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 Meta: Muse Spark 1.1 cost compared to Solar Pro 3?

Meta: Muse Spark 1.1 costs $1.25/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.25/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 Meta: Muse Spark 1.1 and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of Meta: Muse Spark 1.1 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.

Meta: Muse Spark 1.1 vs Solar Pro 3: Which Is Better?

Updated Jul 2026

Our Verdict

Meta: Muse Spark 1.1

Solar Pro 3Runner-up

No community votes yet. On paper, Meta: Muse Spark 1.1 has the edge — newer, bigger context window, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Meta: Muse Spark 1.1

Input

$1.25

Output

$4.25

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

32%

Solar Pro 3 uses 17.3x more emoji

Meta: Muse Spark 1.1

Solar Pro 3

61%Vocabulary50%

20wSentence Length21w

0.10Hedging0.42

3.7Bold6.5

2.0Lists2.2

0.01Emoji0.17

0.52Headings0.56

0.02Transitions0.12

Based on 29 + 18 text responses

Research

What we learned reading every model

Meta: Muse Spark 1.1 and Solar Pro 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

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Solar Pro 3 vs GPT-5New provider

Solar Pro 3 vs Gemini 3.6 FlashNew provider

Updated Jul 2026

Our Verdict

Meta: Muse Spark 1.1

Solar Pro 3Runner-up

No community votes yet. On paper, Meta: Muse Spark 1.1 has the edge — newer, bigger context window, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Meta: Muse Spark 1.1

Input

$1.25

Output

$4.25

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

32%

Solar Pro 3 uses 17.3x more emoji

Meta: Muse Spark 1.1

Solar Pro 3

61%Vocabulary50%

20wSentence Length21w

0.10Hedging0.42

3.7Bold6.5

2.0Lists2.2

0.01Emoji0.17

0.52Headings0.56

0.02Transitions0.12

Based on 29 + 18 text responses

Research

What we learned reading every model

Meta: Muse Spark 1.1 and Solar Pro 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

Solar Pro 3 vs MiniMax M3New provider

Solar Pro 3 vs GPT-5New provider

Solar Pro 3 vs Gemini 3.6 FlashNew provider