GPT-5.1-Codex-Mini vs Meta: Muse Spark 1.1
Compare GPT-5.1-Codex-Mini by OpenAI against Meta: Muse Spark 1.1 by Meta AI, context windows of 400K vs 1.0M, tested across 54 shared challenges.
Our Verdict
GPT-5.1-Codex-Mini
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
GPT-5.1-Codex-Mini
Input
$1.50
Output
$6.00
Meta: Muse Spark 1.1
Input
$1.25
1.2× cheaper
Output
$4.25
1.4× cheaper
Meta: Muse Spark 1.1 is cheaper on both — 1.2× input, 1.4× output
Writing DNA
Style Comparison
Similarity
55%
GPT-5.1-Codex-Mini
Meta: Muse Spark 1.1
65%Vocabulary61%
20wSentence Length20w
0.56Hedging0.10
3.3Bold3.7
3.4Lists2.0
0.00Emoji0.01
0.08Headings0.52
0.05Transitions0.02
Based on 13 + 29 text responses
Research
What we learned reading every model
FAQ
