A desktop app that fits any machine, learns your life, and hands your knowledge to Claude, OpenClaw, or Cursor with one copy-paste — no cloud, no subscription, no compromise.
macOS & Windows · Free 14-day trial · $79 one-time
Built for people who want AI that's private, resilient, and actually theirs.
Reads your hardware — CPU, RAM, GPU — and picks the best local AI model for it. Downloads and starts a chat in under 10 minutes. No settings.
One click indexes your documents, notes, and AI chat exports into a private knowledge base. Distills a portable profile: who you are, what you work on, how you write.
A local MCP server turns your Brain into one copy-paste snippet. Claude, OpenClaw, Cursor — any AI that speaks MCP instantly knows everything you've taught it.
Optional offline library: Wikipedia, WikiHow, iFixit, Gutenberg. Sized to your free disk. The AI searches it without internet — forever.
Ancestral Brain indexes what matters with your consent — documents, notes, ChatGPT exports, Claude history — and builds a living profile of you.
Moving from ChatGPT to Claude? Import your export, copy one snippet, paste it. Done. The new AI knows everything the old one did.
Download Wikipedia, WikiHow, iFixit, medical references, and survival guides as compressed packs. Ask your AI anything — without internet, forever.
Ancestral Brain scans your machine and picks the best model automatically. Here's what to expect.
| Machine | RAM / VRAM | Recommended model | Speed |
|---|---|---|---|
| Apple Silicon (M1/M2/M3/M4) | 16 GB unified | Qwen3 8B or Gemma 4 12B | Fast |
| Apple Silicon (M2/M3 Pro/Max) | 32–64 GB unified | Qwen3 27B or Gemma 4 31B | Fast |
| Windows — NVIDIA GPU | 8 GB VRAM | Qwen3 4B or Gemma 4 4B | Fast |
| Windows — NVIDIA GPU | 16 GB VRAM | Qwen3 8B or Phi-4 14B | Fast |
| Any laptop — CPU only | 16 GB RAM | Qwen3 4B (quantized) | Usable |
| Any laptop — CPU only | 8 GB RAM | Phi-4-mini or Gemma 4 2B | Slow but works |
The app picks the right model automatically — you just click Download. No configuration needed.
No subscription. No usage fees. Buy once, use forever on up to 3 machines.
Early waitlist members get launch-day pricing. We'll email you when it's ready to download.
Be first in line. Waitlist members get launch-day pricing and early download access.
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