Arbor
- → Drop PDFs and images onto an infinite canvas, ask AI about your own sources, and branch ideas spatially — no cloud, no subscription, no telemetry.
- → Local RAG over BGE-small embeddings + LanceDB; deep research pulls real citations and DOIs from OpenAlex and arXiv.
- → Three-tier OCR fallback (Apple Vision → Tesseract → vision LLM); multi-provider model routing (Claude, GPT-4o, Gemini, Mistral, Groq, DeepSeek, Ollama).