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From AI to SI: Slovenia's .si After the "Super Intelligence" Order, and 15 .si Names

20 October 2026 · 4 min read · By Mido

A silicon wafer glowing on black marble with golden neural-network lines rising from it, representing silicon becoming super intelligence

On 29 September 2026 the White House issued Executive Order 14434, "Inaugurating the Era of Super Intelligence". It tells US federal agencies to use "Super Intelligence" and "SI" in place of "Artificial Intelligence" and "AI" in official communications. The two letters are also the country code of Slovenia, and demand for .si names jumped: the registry reported 46,066 new .si registrations in September 2026 (CircleID), and on 20 October 2026 Register.si showed 438,425 .si domains registered in total.

This article explains what happened, why .si also makes sense for chip and hardware companies, and introduces fifteen .si names.

Figures last checked: October 2026.

1. One order, one extension

According to TechCrunch, the registry recorded about 11,000 new .si addresses on 30 September alone, the day after the order was signed. The registry's spokesperson was careful not to link the whole increase to the order, but the timing is clear: for many companies, "SI" is now a term they may read in US government documents.

2. .si already meant silicon

Si is the chemical symbol for silicon, the material most computer chips are made from. That gives the extension a second meaning that fits semiconductor, photonics and hardware companies, whatever happens to the new terminology. Three of the names below (Serdes.si, PhotonCompute.si and PhotonFabric.si) use that meaning.

3. A word of caution

Not every new .si name is an AI project. Hostinger told TechCrunch that only about 3% of the .si names its customers registered were explicitly AI-related, and some buyers register names to resell them. That is why the names below are real words and terms, or short brandables, rather than names built only on the trend.

The names

Fifteen names, all on .si, in three groups: three for silicon and photonics hardware, five words that describe how intelligent systems reason (Epistemic, Empirical, Metacog, Perceiver and Truthful), and seven short brands and European words.

Chip-to-chip data lanes glowing gold between two processors, representing SerDes high-speed links

Serdes.si

SerDes: short for serializer/deserializer, a circuit that moves data between chips over fast serial links.

Five letters on .si. The short form engineers commonly use. A compact brand for SerDes IP, chips or design services.

Optical fibers feeding light into a photonic chip, representing photonic computing

PhotonCompute.si

Photonic computing: computing that uses light (photons) instead of, or alongside, electrical signals to process data.

Computing with light. For photonic computing and optical processing start-ups, research groups or a developer platform.

A woven mesh of gold light, representing an optical interconnect fabric

PhotonFabric.si

Optical fabric: a network that connects many chips or systems and carries data between them as light.

An optical fabric. Describes networks that move data as light between chips and systems. A clear name for an interconnect start-up or a fabric product.

A glowing gold human head made of light lines with bright and faint nodes, representing what an AI knows and what it is unsure of

Epistemic.si

Epistemic: relating to knowledge, and to how we know what we know.

Epistemic SI. For AI that knows what it does not know: uncertainty estimation, reasoning research or a knowledge platform.

Gold calipers and a glass beaker beside a rising gold data chart on a dark lab bench, representing empirical measurement

Empirical.si

Empirical: based on observation, measurement or experiment rather than theory alone.

Empirical SI. For model evaluation and benchmarking, an AI research lab or a data science consultancy.

A gold wireframe brain with a brighter brain inside it and a ring of light, representing metacognition

Metacog.si

Metacognition: awareness and control of one's own thinking, such as checking one's reasoning.

Short for metacognition. For self-checking AI agents, reasoning tools or learning products that teach people how to think.

A robotic eye with a gold iris sending out scan lines, representing machine perception

Perceiver.si

Perceiver: someone or something that perceives, that becomes aware of the world through senses or sensors.

Machine perception. For computer vision, robotics sensing or multimodal AI that sees, hears and reads.

A balanced gold scale under a beam of light on black marble, representing truth and accuracy

Truthful.si

Truthful: telling or expressing the truth.

Truthful SI. For fact-checking, AI evaluation and trust-and-safety tools, or any product whose promise is accurate answers.

A friendly gold AI assistant orb surrounded by task cards with checkmarks, representing an AI that gets things done

Aido.si

Reads as "AI do". A short, friendly name for an AI assistant or an app that gets tasks done.

A gold hexagonal shield of light protecting a server while red threat lines break apart, representing cybersecurity

Secunit.si

Sec + unit, a security unit. For a cybersecurity product, a security operations team or AI-driven threat detection.

A gold heartbeat line turning into a forecast curve beside a medical display, representing prognosis and health forecasting

Progno.si

Prognosis: a forecast of how something, especially a disease, is likely to develop.

Reads as "prognosi", Italian for prognosis. For predictive analytics, clinical forecasting or a health-tech brand.

A leather case file and pen on a desk in an Italian law office at night, with St Peter's dome in the window

Pratica.si

"Practice" or "case file" in Italian, and sì means "yes". An Italian reader can see "pratica, sì" ("the case, yes"), a positive name for practice-management software for law firms, accountants or clinics.

Robotic arms on a gold-lit smart factory production line at night, representing industrial AI

Industria.si

"Industry" in Italian, Spanish and Latin. For industrial AI, manufacturing software or an industry media brand.

Hoha.si

Four letters, two easy syllables. A short, playful brandable for a consumer app or a start-up.

Nilson.si

A surname-style name. A personal, trustworthy-sounding brand for a firm or a product, or a fit for someone named Nilson.

Who these names are for

AI and "SI" start-ups looking for a short name on the extension now linked to super intelligence.
Chip, photonics and hardware companies, for whom .si also reads as silicon.
AI research labs and evaluation teams, for Epistemic.si, Empirical.si, Metacog.si, Perceiver.si and Truthful.si.
Companies in Italy and other Latin-language markets, for Progno.si, Pratica.si and Industria.si. In Italian, sì also means "yes".

Buy one, or the whole set

Together the fifteen names cover silicon hardware (Serdes.si, PhotonCompute.si and PhotonFabric.si), the vocabulary of reasoning (Epistemic.si, Empirical.si, Metacog.si, Perceiver.si and Truthful.si) and short brands and European words (Aido.si, Secunit.si, Progno.si, Pratica.si, Industria.si, Hoha.si and Nilson.si). Every name has a Buy Now link to its sale page and a Make Offer button. You can also make one offer for all fifteen with the Make Offer for the Bundle button. Direct deals close through Escrow.com, and you will get a personal reply within 24 hours.

Sources

Domains in this article

Serdes.siBuy Now
PhotonCompute.siBuy Now
PhotonFabric.siBuy Now
Epistemic.siBuy Now
Empirical.siBuy Now
Metacog.siBuy Now
Perceiver.siBuy Now
Truthful.siBuy Now
Aido.siBuy Now
Secunit.siBuy Now
Progno.siBuy Now
Pratica.siBuy Now
Industria.siBuy Now
Hoha.siBuy Now
Nilson.siBuy Now

Interested in the whole set? Make one offer for all 15 domains.