xAI: Grok 4 vs Optimus Alpha
Compare xAI: Grok 4 by xAI against Optimus Alpha by OpenRouter, context windows of 256K vs 1.0M, tested across 17 shared challenges.
Our Verdict
xAI: Grok 4
Optimus Alpha
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
Input
$3.00
Output
$15.00
Optimus Alpha
Input
—
Output
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Writing DNA
Style Comparison
Similarity
45%
xAI: Grok 4 uses 7.0x more emoji
xAI: Grok 4
Optimus Alpha
53%Vocabulary63%
18wSentence Length18w
0.67Hedging0.55
2.7Bold7.7
2.7Lists5.7
0.07Emoji0.00
0.86Headings0.30
0.04Transitions0.27
Based on 21 + 10 text responses
Research
What we learned reading every model
FAQ
