GPT-5.6 Sol vs Muse Spark 1.1
Compare GPT-5.6 Sol by OpenAI against Muse Spark 1.1 by Meta AI, context windows of 1.1M vs 1.0M, tested across 54 shared challenges.
Our Verdict
GPT-5.6 Sol
Muse Spark 1.1Runner-up
No community votes yet. On paper, GPT-5.6 Sol has the edge — bigger model tier.
Muse Spark 1.1 is 7.1x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.6 Sol
Input
$5.00
Output
$30.00
Muse Spark 1.1
Input
$1.25
4.0× cheaper
Output
$4.25
7.1× cheaper
Muse Spark 1.1 is cheaper on both — 4.0× input, 7.1× output
Writing DNA
Style Comparison
Similarity
41%
GPT-5.6 Sol uses 8.0x more hedging
GPT-5.6 Sol
Muse Spark 1.1
63%Vocabulary61%
15wSentence Length20w
0.79Hedging0.10
3.4Bold3.7
3.8Lists2.0
0.03Emoji0.01
0.95Headings0.52
0.08Transitions0.02
Based on 27 + 29 text responses
Research
What we learned reading every model
FAQ
Common questions
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