Build your wildest ideas.Properly.
Production web apps. Physics simulations. Astrophysics tooling. Even a video game. Yttrium already holds the deep expertise, so you don't have to. Describe what you want and it builds the real, genuine thing against a spec you own, reviewed by an Angel and hardened with top-tier security from the very first line.
↳ you never need to know the field. it does.
A spec you own. An agent you can follow. A reviewer that keeps it honest.
Your locked, portable SPEC.md - the single source of truth the agent builds against. Anti-drift by design: it never silently rewrites your intent.
One named agent that builds to the spec. A calm step-log and a plan you can read, not a swarm to orchestrate.
A distinct, gentle reviewer that grades every write - alignment, security, optimization - before it lands. Advisory, never punitive.
Top-tier security practices are reviewed into every write - hardened from the first line, never bolted on after.
Expert advisory across the whole journey: architecture, what to build next, how to differentiate, what to fix. An expert reading at your shoulder.
Your preview becomes your ideal customer and exercises the app the way that user actually would. Unique to Yttrium.
A handoff brain that never loses the thread - context persists and hands off cleanly across the longest sessions.
It already knows your field.
The Assembler and the Angel don't learn your domain on the fly. Institution-grade expertise - drawn from the canon of Harvard, MIT, NASA, BYU and more - is rooted into how Yttrium thinks. Not bolt-on skills, but a system that reasons like an expert in the field, so every domain feels native from the first prompt.
↳ rigor baked in - not vibes, not guesses.
FIG.03 · providers & cost
Mix providers. Keep the savings.
Yttrium runs DeepSeek, Anthropic, OpenAI and more, side by side. Dial each task to exactly what it needs: cheap models for the bulk, frontier models for the hard parts, for significant savings at virtually no drop in quality. The Angel and the final apply stay pinned to a frontier model, always.
Build from your pocket.
A standalone builder for iOS and Android - not a remote for your desktop. Write genuine code on-device, watch an instant web preview, and kick off a cloud build for a real native app when you're ready.
// honest: on-device gives a web preview - native compilation runs in the cloud.
fig. anYwhere - actual build, on device
The first 1,000 developers.
Yttrium Studio opens in July 2026. Free early access - add yourself, and we'll be in touch when it's your turn.
surfaces - desktop ide · anYwhere mobile
pricing - managed-primary · tiers coming soon