xAI: Grok 4.5 vs Meta: Muse Spark 1.1
Compare xAI: Grok 4.5 by xAI against Meta: Muse Spark 1.1 by Meta AI, context windows of 500K vs 1.0M, tested across 54 shared challenges.
Our Verdict
xAI: Grok 4.5
Meta: Muse Spark 1.1
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
xAI: Grok 4.5
Input
$2.00
Output
$6.00
Meta: Muse Spark 1.1
Input
$1.25
1.6× cheaper
Output
$4.25
1.4× cheaper
Meta: Muse Spark 1.1 is cheaper on both — 1.6× input, 1.4× output
Writing DNA
Style Comparison
Similarity
48%
xAI: Grok 4.5 uses 9.0x more emoji
xAI: Grok 4.5
Meta: Muse Spark 1.1
61%Vocabulary61%
16wSentence Length20w
0.23Hedging0.10
2.5Bold3.7
2.4Lists2.0
0.09Emoji0.01
0.48Headings0.52
0.06Transitions0.02
Based on 27 + 29 text responses
Research
What we learned reading every model
FAQ
Common questions
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