Open Source
BIBIM is open source.
Apache 2.0. Free forever. Bring your own API key. No SquareZero server. No subscription.
Why open source
Trust
A tool that runs code inside your BIM model needs to be auditable. Open source makes the verification logic transparent — every decision visible.
Reach
BIM practitioners are spread across firms of all sizes. Open source removes the barrier to access. The tool reaches the people who need it, not just the ones with procurement budgets.
Ecosystem
An open foundation invites contribution from practitioners who understand the edge cases that no single team can anticipate. The tool improves with the community it serves.
Repositories
Three platforms — two open, one on the way.
SquareZero-Inc / bibim-revit
AI agent for Revit — Revit 2022–2027
SquareZero-Inc / bibim-dynamo
AI agent for Dynamo — Dynamo 2022–2026
SquareZero-Inc / bibim-archicad
AI agent for ArchiCAD — ARCHICAD 29
Community
Weekly top of r/BIM on launch.
r/BIM
123 upvotes · 33 comments · Weekly top
Community response on launch confirmed demand that had no existing outlet — practitioners seeking AI tooling that works natively inside their BIM environment, without data routing or subscription overhead.
BYOK Setup
Bring your own API key.
Claude (Anthropic)
Get key at console.anthropic.com
GPT (OpenAI)
Get key at platform.openai.com
Gemini (Google)
Get key at aistudio.google.com
Paste your key into BIBIM settings. All model calls go directly from your machine to the provider. SquareZero does not see, store, or route your key or your model input.
Contribute
Contributions welcome.
If you encounter edge cases, missing API coverage, or want to extend BIBIM to additional platforms — open an issue or pull request on GitHub. See the contributor guide in each repository.
github.com/SquareZero-Inc