Tal Weiss

Founder · Engineer · Writer

I build AI that acts and AI that cares.

I sold an NLP startup to Booking.com, spent seven years running ML there, and now build AI agents, x402 payment rails, and voice AI for seniors at Kychee.

Amsterdam · from Israel · 15 years with the same co-founder · still writes code

I work on two ends of the same spectrum: software that can do useful work, and software that can speak to people who do not care how it works.

AI that acts

Run402

Backend rails for agentic apps and software-as-labor workflows.

Bld402

No-code builder for AI workflows.

Advenchee

AI text adventures as a playful lab for interaction design.

AI that cares

Eleanor

Voice AI for seniors - the human side of memory, companionship, and useful conversation.

2009 Co-founded Evature
2017 Acquired by Booking.com
7 years Building and managing ML at Booking
15+ Years with the same co-founder
4 patents In NLP and travel tech
Amsterdam Based in the Netherlands

I started in hardware and telecom, built an NLP startup before the current hype cycle, spent years inside a giant travel company, and then went back to building from scratch. I care about systems, language, co-founders, old people using new technology, and the occasional absurdity of automation.

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I'm easiest to find on X. Everything longer lives here.