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10 domain names verified available at the registry (RDAP) on September 2, 2026 — availability changes fast, re-check before registering.

Find serious, premium 4-letter brand names for a global AI platform. Exactly 4 letters, easy to pronounce and remember, strong phonetics, modern and trustworthy, suitable for AI agents, automation and developer infrastructure. Invented names only, no acronyms, no childish/game-like names. Must look great as XXXX.ai. Prioritize unique names with available .ai domains.

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4.7
kryl.ai

Cryogenic precision · Cool, calculated, trustworthy, modern tech aesthetic.

4.7
mryn.ai

Mystic yet mechanical · Unique spelling, premium feel, distinct from common words.

4.7
zlyn.ai

Z-lyn, zero-latency stream · Sharp z, modern, abstract infrastructure vibe.

4.7
tlyn.ai

T-lyn, tensor logic net · Simple t-start, smooth, trustworthy AI vibe.

4.7
pyrn.ai

P-yrn, parallel compute node · P-start, engineered, automation-ready.

4.7
dlyn.ai

D-lyn, data flow engine · D-start, steady, infrastructure-adjacent.

4.5
zryx.ai

Zero, rigid, syntax. · Hard consonants, system-level feel, unique pairing.

4.7
kvyn.ai

Key, vein, flow. · Data flow metaphor, soft Y ending.

4.7
kolv.ai

Solid core logic · Heavy, stable phonetics for systems.

4.7
tzyn.ai

Sharp synthetic logic · Modern, technical, distinct rhythm.

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How we picked these names

NameBuddy.ai used a large language model to brainstorm hundreds of brandable candidates from the prompt above, then ran each one through a live RDAP/WHOIS check against the registries for .ai, .com, .io, .app and .net. The list you see is the subset that came back as not registered at the time of the search — so every name on this page is genuinely available to claim. Availability changes fast, though: if you find one you like, register it within the next hour or two through any accredited registrar.

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Frequently asked

Are these names really available to register?+

Yes — every name on this page passed a live RDAP / WHOIS check at the time the search ran. Domain availability changes minute-by-minute, so if you see one you like, register it immediately. The "Register" buttons hand off to Namecheap, which re-checks availability on its side before you complete payment.

How do I register a domain I like?+

Click any name to open it on Namecheap and complete checkout there. NameBuddy.ai is not a registrar — we just generate and verify candidates. See our best-registrars guide for the trade-offs between Cloudflare Registrar (at-cost), Namecheap (friendly UI), and Porkbun (unusual TLDs).

What about trademarks?+

An available domain is not a clear trademark. Before you build a brand around any name, search the USPTO and EUIPO databases for conflicts in your industry. Our startup-name checklist walks through the full pre-registration trademark check.

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