live2026
AstraNexus
Agentic multimodal email organizer that turns your inbox into a galaxy.
Fine-tuned multimodal encoder clusters emails into "constellations", rendered as a navigable galaxy with cross-account "wormholes". Agentic graph with LLM-as-judge self-correction.
The problem
Inboxes are flat, lossy, and impossible to navigate across accounts. Search finds strings, not meaning — and never the picture inside the attachment.
How I built it
- Fine-tuned a multimodal encoder (MiniLM text + SigLIP vision) with LoRA so text and image attachments share one embedding space.
- Clustered embeddings with HDBSCAN into semantic "constellations", visualized as an explorable galaxy.
- Linked related threads across accounts via cross-account "wormholes".
- Wrapped it in a LangGraph agentic graph with LLM-as-judge self-correction to keep organization decisions accountable.
- Self-hosted NVIDIA Nemotron on Modal GPUs via vLLM for private, fast inference.
Outcome
Live on a Hugging Face Space; built for the Build Small hackathon. The encoder is published as an open model.