Until recently, “.ai” domains (short for “Artificial Intelligence”) were all the rage. Now the next big trend has begun: Everyone’s talking about Super Intelligence, and the corresponding “.si” domain is available at helloly—for just €1.40 per month.
In this blog post, we’ll answer the most important questions about the new domain and let you know whether it’s worth snapping one up now.
Table of Contents
.si is associated with Super Intelligence, the next level of artificial intelligence.
Domains ending in .si are affordable, in high demand, and available.
.ai or .si – Which top-level domain stands for artificial intelligence (AI)?
First, a fun fact: Neither of these domains was originally created for artificial intelligence.
- .ai did not originally stand for “Artificial Intelligence,” but for the United Kingdom’s overseas territory of Anguilla
- .si did not originally stand for “Super Intelligence,” but rather for the beautiful, tranquil country of Slovenia in the heart of Europe.
.ai has since established itself as the top-level domain for artificial intelligence. Given recent developments, it’s safe to assume that .si will establish itself as the top-level domain for superintelligence.
How has .ai evolved since the AI hype?
In a word: breakneck!
The AI hype began in November 2022, when OpenAI introduced the ChatGPT chatbot.
In October 2022, there weren’t even 100,000 domains registered with the .ai top-level domain. Now, four years later, in October 2026, there are just under 1.5 million—a 1,500% increase!
And how is the .si domain faring?
Source: domainnamestat.com
How is .si currently performing?
Following the groundbreaking success of the .ai top-level domain, the second TLD associated with AI technology is now taking off: .si
There are solid reasons for this:
- Many popular domains are still available under .si
- The term “Super Intelligence” is currently spreading like wildfire
- .si domains are still very affordable right now
Source: domainnamestat.com
What is the difference between .ai and .si?
First and foremost, the price:
A domain with the .ai TLD costs €24 per month
An address with the trendy .si domain costs €1.40 per month
| Feature | .ai | .si |
|---|---|---|
| Affiliated Country/Territory | Anguilla (British overseas territory in the Caribbean) | Slovenia (EU member state) |
| Primary Use | Global Artificial Intelligence (AI) Tech Industry | Slovenian companies; recently trending in the field of superintelligence |
| Contracting Authority | Government of Anguilla | ARNES (Academic and Research Network of Slovenia) |
| Terms and Conditions | Open registration for anyone worldwide (no local residence required) | Open registration for anyone worldwide (no local residence required) |
| Price Level | Very high | (still) very low |
That means: For the price of one .ai domain, you get 17 .si domains—or, to put it another way:
A .si domain costs less than 6% of the price of a .ai domain.
What exactly is the term “superintelligence”?
Superintelligence is defined as follows: A being or machine whose intelligence is superior to that of humans in many or all areas of human intelligence.
In 1965, I. J. Good was the first to develop the concept of superintelligence and a possible intelligence explosion:
An ultra-intelligent machine is defined as a machine that can far surpass the intellectual capabilities of any human being, no matter how intelligent that person may be. Since the construction of such machines is itself one of these intellectual capabilities, an ultra-intelligent machine can build even better machines; there would undoubtedly be an explosive development of intelligence, and human intelligence would lag far behind. The first ultraintelligent machine is thus the last invention that humanity will ever make.
Source: I. J. Good: “Speculations Concerning the First Ultraintelligent Machine ” – 1965 (archived on March 4, 2016, at the Internet Archive). Retrieved October 23, 2026.
Who might be interested in a .si domain?
A .si domain is currently particularly attractive to four key stakeholder groups:
- Startups & Tech Companies in the “Super Intelligence” (ASI) Sector
- Domain Extensions as Future Branding: While .ai (Anguilla) seems reserved for traditional artificial intelligence, .si is rapidly establishing itself in the tech sector as a synonym for Super Intelligence or Artificial Superintelligence (ASI).
- High Domain Name Availability: Unlike .ai and .com, where short, catchy one-word terms and acronyms have long been taken or are extremely expensive, the .si domain space still offers a wide variety of available keyword and premium combinations.
- No local restrictions: The registry ARNES does not require a residence or corporate headquarters in Slovenia. International founders and teams can easily secure their desired domains.
- Established AI companies and brand owners (defensive protection)
- Affordable brand protection: With standard registration and renewal fees often ranging from just around 10 to 25 € per year (compared to 80 to over 100 € annually for .ai, which sometimes requires a minimum two-year term), .si offers cost-effective protection.
- Preventing domain squatting: Companies with existing .ai or .com websites secure the corresponding .si domain as a preventive measure to avoid trademark misuse, confusion, or overpriced buybacks on the aftermarket.
- Companies Targeting the Slovenian Market (EU Single Market)
- Traditional ccTLD Use: For retailers, service providers, and international corporations looking to specifically target Slovenian customers and businesses, .si remains the standard.
- Local Trust & Geotargeting: Search engines like Google typically treat ccTLDs as a geographic indicator for the respective country, which boosts trust and click-through rates among local users.
- Domain investors and creative wordplay brands (“domain hacks”)
- Asymmetric return potential: Investors are speculating that the hype surrounding superintelligence will boost demand and market values in a similar way to what happened with .ai back then.
- Linguistic domain hacks:
- In Slovenian, “si” means “you are.”
- In Spanish and Italian, “sí/sì” means “yes.”
- This allows for the creation of descriptive web addresses or calls to action.
Important SEO note for global projects: Since Google still formally classifies .si (unlike, for example, .ai, .io, or .me), the domain is primarily suitable for international products that are exclusively in English or German as a concise secondary domain that redirects to the main domain (.com, .ai, etc.) or as a standalone project brand.
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