Super Intelligence · .si · no reserve
AI is becoming Super Intelligence. Its domain is .si
57 Super Premium four-letter .si domains, hand-picked from my own portfolio, every one starting at $99 with no reserve. Tech terms, brandables, letters that already sold in .com and .org, and real Slovenian words. The highest bid when the clock stops wins.
.ai began as a country code and became the address of AI. .si is the same two letters as Super Intelligence.
The world is switching the word
Dated news, linked to the source. Judge it yourself.
At the UN General Assembly, President Trump said the US government will replace "artificial intelligence" with "super intelligence" in its documents.
Interesting EngineeringOn Truth Social he called Super Intelligence "the highly accepted new and more accurate term."
Arab NewsElon Musk uses "super intelligence" in his posts on X, and Meta is among the companies already using the term.
Gulf NewsMicrosoft formed the MAI Superintelligence Team, led by Microsoft AI CEO Mustafa Suleyman.
FortuneMark Zuckerberg set up Meta Superintelligence Labs and hired researchers from OpenAI, Google and Anthropic for it.
Entrepreneur
The numbers
Real counts and real sales, each with its source and date.
Our own daily count of the .si zone (scale starts at 32,800)
- 13,603
new .si domains registered in a single day (24 hours to 1 Oct 2026).
Register.si, via CircleID - +1,317
four-letter .si taken in 7 days (22 to 29 Oct 2026): 34,203 of the 456,976 possible are now registered.
Our own daily count of the .si zone - 50 of 57
domains in this auction carry a meaning: an acronym, a tech or science term, a name, or a word in Slovenian or another language. The other 7 are short, easy-to-say names.
Each card below states its meaning
Four-letter .si acronyms that sold
Not dictionary words: letters like the ones in this auction. October 2026.
| Domain | Price | Venue | Date |
|---|---|---|---|
| NESA.si | $9,500 | Atom | 8 Oct |
| FOMO.si | $5,000 | Sedo | 6 Oct |
| EXPR.si | $4,000 | Atom | 8 Oct |
| DYNA.si | $3,495 | Sedo | 13 Oct |
| BTCS.si | $3,000 | Saw.com | 14 Oct |
| DEPT.si | $2,995 | Atom | 5 Oct |
| CISO.si | $2,388 | Dynadot | 12 Oct |
Sales reported by the venue named. A selection: not every four-letter .si sells, and a past sale is a fact about that domain, not a price for these.
Why .si can follow .ai
Same story, next chapter
.ai was Anguilla's country code. When the world started saying "AI", .ai became the natural address for AI companies. If the world says "Super Intelligence", .si is the two-letter match.
Four letters are scarce
There are only so many four-letter combinations, and every one in .si is open to anyone in the world. The good ones are going: each card shows in how many other extensions the same letters are already taken.
Early, not late
Four-letter .si names still start at $99 here. Most companies building Super Intelligence have not looked at .si yet. This is my own bet too: I hold .si names myself.
Same letters already sold 6
These four letters sold in another extension in 2026. That price is a fact about the other domain, not a value for the .si.
Tech, AI and science terms 21
Acronyms and terms people in tech, science and medicine already use.
Short brandables 18
Easy to say, easy to type, ready for a Super Intelligence product.
Real words in Slovenian 12
Bonus meaning: these are everyday words in Slovenian, the language behind .si.
How to bid
- Pick a nameClick any card. It opens that domain's auction on Dynadot in a new tab.
- Sign in to DynadotA free Dynadot account is all you need to bid.
- Watch the clockThe highest bid wins. A bid in the last 5 minutes adds 5 minutes, so nobody gets sniped.
- Get the domainDynadot takes the payment and moves the domain into the winner's account.
Plain facts
These 57 domains are mine ("Super Premium" is my own description of my picks), sold through Dynadot's own user auctions with no reserve above the $99 start. .si is the country code of Slovenia; "Super Intelligence" is a reading of the letters, not an official meaning, and no person or company named on this page is connected to these auctions. The news above is quoted from the linked sources. "Taken in X of 84 other extensions" counts how many of 84 popular extensions have the same four letters registered. Past sales in another extension are facts about that domain, not a value for the .si. This is a thesis, not a promise: domains carry no guaranteed return.