Humane AI Pin, Rabbit R1, Pocket (YC W26).
Amazon Alexa, Google Assistant, Apple Siri.
Tab (necklace AI), Limitless (Rewind) pendant.
Physical hardware moat: clip-on form factor with press-to-talk privacy model is a design decision baked into the product, not a software toggle. Two ex-Apple Vision Pro engineers bring hardware shipping expertise that software-only competitors cannot replicate without building a supply chain.
Using on-device speech-to-text in under 500ms, intent classification across a voice app ecosystem, and federated speaker adaptation that learns without uploading audio.
Real-time voice, video, and text chat platform built around persistent community servers.
The deepest engagement metrics in consumer social (94 minutes per day) combined with a pre-IPO path and untapped advertising plus developer monetization surface area.
Keeps production AI agents reliable by continuously fine-tuning against business metrics.
Most AI agent teams monitor in production and fine-tune separately. Carrot Labs closes the loop: it evaluates agent performance against business metrics and selectively retrains, which means the agent improves without a human deciding what to fix.
A visual canvas for designing, debugging, and collaborating on AI agent workflows.
Figma does not understand agent logic. LangChain does not have a visual canvas. Glue sits at the intersection: a drag-and-drop interface for designing, debugging, and collaborating on AI agent workflows with reasoning visualization built in.
Auto-detects 50+ exercises and tracks reps, form, and fatigue on-wrist without manual logging.
Whoop and Oura track recovery. No wearable auto-detects and counts strength training reps. Fort does, across 50+ exercises, built by five ex-Tesla engineers who know how to ship sensor hardware with on-device ML. The category is greenfield.