What is the difference between Claude Haiku 4.5 and Meta: Muse Spark 1.1?

Claude Haiku 4.5 is developed by Anthropic while Meta: Muse Spark 1.1 is developed by Meta AI. Claude Haiku 4.5 has a 200K token context window vs Meta: Muse Spark 1.1's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or Meta: Muse Spark 1.1?

It depends on your use case. Claude Haiku 4.5 and Meta: Muse Spark 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude Haiku 4.5 cost compared to Meta: Muse Spark 1.1?

Claude Haiku 4.5 costs $1/M input tokens and Meta: Muse Spark 1.1 costs $1.25/M input tokens. Claude Haiku 4.5 is $0.25/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 Claude Haiku 4.5 and Meta: Muse Spark 1.1 on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Meta: Muse Spark 1.1 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 Claude Haiku 4.5 and Meta: Muse Spark 1.1?

Claude Haiku 4.5 is developed by Anthropic while Meta: Muse Spark 1.1 is developed by Meta AI. Claude Haiku 4.5 has a 200K token context window vs Meta: Muse Spark 1.1's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Haiku 4.5 or Meta: Muse Spark 1.1?

It depends on your use case. Claude Haiku 4.5 and Meta: Muse Spark 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does Claude Haiku 4.5 cost compared to Meta: Muse Spark 1.1?

Claude Haiku 4.5 costs $1/M input tokens and Meta: Muse Spark 1.1 costs $1.25/M input tokens. Claude Haiku 4.5 is $0.25/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 Claude Haiku 4.5 and Meta: Muse Spark 1.1 on Rival?

This page shows a side-by-side comparison of Claude Haiku 4.5 and Meta: Muse Spark 1.1 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.

Claude Haiku 4.5 vs Meta: Muse Spark 1.1: Which Is Better?

Updated Jul 2026

Our Verdict

Meta: Muse Spark 1.1

Claude Haiku 4.5Runner-up

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

Too close to call

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

1.3× cheaper

Output

$5.00

Meta: Muse Spark 1.1

Input

$1.25

Output

$4.25

1.2× cheaper

Claude Haiku 4.5 wins input (1.3× cheaper)·Meta: Muse Spark 1.1 wins output (1.2× cheaper)

Writing DNA

Style Comparison

Similarity

44%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Meta: Muse Spark 1.1

61%Vocabulary61%

47wSentence Length20w

0.64Hedging0.10

5.1Bold3.7

6.3Lists2.0

0.20Emoji0.01

2.46Headings0.52

0.17Transitions0.02

Based on 24 + 29 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Meta: Muse Spark 1.1 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

Claude Haiku 4.5 vs MiniMax M3New provider

Claude Haiku 4.5 vs Gemini 3.6 FlashNew provider

Claude Haiku 4.5 vs GPT-5New provider

Updated Jul 2026

Our Verdict

Meta: Muse Spark 1.1

Claude Haiku 4.5Runner-up

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

Too close to call

API pricing

Cost per 1M tokens

Claude Haiku 4.5

Input

$1.00

1.3× cheaper

Output

$5.00

Meta: Muse Spark 1.1

Input

$1.25

Output

$4.25

1.2× cheaper

Claude Haiku 4.5 wins input (1.3× cheaper)·Meta: Muse Spark 1.1 wins output (1.2× cheaper)

Writing DNA

Style Comparison

Similarity

44%

Claude Haiku 4.5 uses 20.4x more emoji

Claude Haiku 4.5

Meta: Muse Spark 1.1

61%Vocabulary61%

47wSentence Length20w

0.64Hedging0.10

5.1Bold3.7

6.3Lists2.0

0.20Emoji0.01

2.46Headings0.52

0.17Transitions0.02

Based on 24 + 29 text responses

Research

What we learned reading every model

Claude Haiku 4.5 and Meta: Muse Spark 1.1 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

Claude Haiku 4.5 vs MiniMax M3New provider

Claude Haiku 4.5 vs Gemini 3.6 FlashNew provider

Claude Haiku 4.5 vs GPT-5New provider