/ KEYSTONE/ KEYSTONESingle AI tools bet on one model. Keystone is infrastructure that gets smarter as AI does — a fully customizable system where every agent runs on the best model, all drawing on one architectural brain.
Every agent is model-agnostic — drawing on 400+ models connected through OpenRouter (Claude, Gemini, GPT, and more). Keystone is the harness that adapts to AI's growth instead of betting on one model that may vanish.
You only talk to the Keystone Manager. It dispatches eight main agents — site, code, program, visualization, CAD and more — each backed by its own fleet of specialist subagents.
A growing knowledge graph — building codes, precedent, drawing standards and your firm's conventions. Every agent retrieves from it, so each output arrives with context already loaded.
A Quick Action is an encoded workflow that dispatches the right agents and ships a finished deliverable — a set of site diagrams or a topography section — for any location on earth, in minutes. A Pipeline goes a layer up: one run fires every Quick Action in a phase, carrying you from site to schematic design fast.
License Keystone once and own it for life — run it exactly as it is today, forever. But AI moves fast, and staying current matters: a subscription brings every update in Studio and Frontier, so your license keeps pace as the models advance.
Buy individual Quick Actions — own each forever, no subscription. Priced by sophistication. Pick a tier, add what you need.
Bespoke agents, firm-specific Quick Actions and integrations into your pipeline — built to your standards.
Tell us the firm and how many seats you need. We'll send volume pricing, a deployment plan, and answer anything about custom agents or integrations.