Build offline reasoning AIs in an afternoon. 34 ready-made templates. 35 KB binaries. Private forever.
A compiler and 34 ready-to-edit templates that let you build tiny, private, reasoning AIs — "Babies" — that run entirely on your Mac. No cloud. No API keys. No subscription. Not an LLM. Each Baby is one text file of facts plus a 20-line reasoning engine. You edit the facts, recompile in one command, and you have a new specialist AI under 40 KB. Every answer traces back to a fact you wrote.
v1.4.0 adds the POLYGRID Planes spec — a buyer-facing doc covering all four planes (PREDICT, DECIDE, CREATE, LEARN) with full 8×8 byte maps, when-to-use notes, and chaining guide. The `predict.light` template ships as the first working POLYGRID-plane Baby.
What you get
34 working template Babies — first aid, electrician, plumber, HVAC, ham radio, recipes, IoT firmware, and more
Compiles to ~35 KB native Mac binaries with zero runtime dependencies
Every answer traces back to a fact you wrote — fully explainable, no hallucinations
Permission to build and resell Babies commercially
POLYGRID Planes spec doc (PREDICT / DECIDE / CREATE / LEARN) — four named reinterpretations of the 64-byte grid
Free lifetime updates for v1.x — when File I/O and Network rows land, your Babies still work
Direct email support from Zac
System requirements
macOS 13 Ventura or newer
Apple Silicon runs the bundled binary directly; Intel rebuilds from source automatically (one-time, ~2 min, Rust required)
Homebrew (used by install.sh for llvm@18 and zstd)