Aurora AlphavsMercury
Aurora Alpha is cheaper than Mercury at $0/M vs $10/M input tokens.
| Spec | Aurora Alpha | Mercury |
|---|---|---|
| Input price | Free | $10/M tokens |
| Output price | Free | $10/M tokens |
| Context window | 128K tokens | 32K tokens |
| Free API (OpenRouter) | No | No |
| Released | Feb 2026 | Jun 2025 |
Our Verdict
Aurora Alpha
MercuryRunner-up
Not enough votes to call it. On the specs, Aurora Alpha has the edge: bigger model tier, newer, bigger context window.
Slight edge
API pricing
Cost per 1M tokens
Aurora Alpha
Input
$0.000
Output
$0.000
Mercury
Input
$10.00
Output
$10.00
Writing DNA
Style Comparison
Similarity
75%
Aurora Alpha uses 3.6x more emoji
Aurora Alpha
Mercury
52%Vocabulary60%
21wSentence Length31w
0.43Hedging0.78
6.3Bold4.1
2.2Lists2.8
0.10Emoji0.03
0.69Headings0.88
0.16Transitions0.06
Based on 22 + 26 text responses
Research
What we learned reading every model
FAQ
Common questions
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