Aurora Alpha vs Claude Haiku 4.5
Compare Aurora Alpha by OpenRouter against Claude Haiku 4.5 by Anthropic, context windows of 128K vs 200K, tested across 53 shared challenges.
Our Verdict
Aurora Alpha
Claude Haiku 4.5
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
Aurora Alpha
Input
$0.000
Output
$0.000
Claude Haiku 4.5
Input
$1.00
Output
$5.00
Writing DNA
Style Comparison
Similarity
48%
Claude Haiku 4.5 uses 3.5x more headings
Aurora Alpha
Claude Haiku 4.5
52%Vocabulary61%
21wSentence Length47w
0.43Hedging0.64
6.3Bold5.1
2.2Lists6.3
0.10Emoji0.20
0.69Headings2.46
0.16Transitions0.17
Based on 22 + 24 text responses
Research
What we learned reading every model
FAQ
