cayden 凯登

We're shipping out 1,000 open source smart glasses 1 year after starting this hardware project Livestream anywhere, take AI notes, film POV, listen to music, and build your own apps on Mentra Live. Things are just getting started 😎

@PRC_Made @MentraGlass G2 support coming in next couple weeks

@caydengineer @MentraGlass MentraOS is a great platform, but I'm still waiting for it to become compatible with the Even Realities G2

We worked 996 in Shenzhen making smart glasses so you don’t have to. AI has made us 100X smarter… unless you work in the physical world. That’s because AI can’t see, can’t hear, can’t act in the physical world. But now with smart glasses, it can. But making smart glasses is really hard and expensive and you’ll probably fail. That’s why we made open source smart glasses, so you don’t have to. Mentra Live is for building and deploying apps that let AI see, hear, and act in real time. Think of frontline workers wearing smart glasses as AI whispers repair instructions in their ears, salespeople getting live tips to close a deal, manufacturing inspections verified with AI vision, delivery drivers saving minutes per door. The software under-the-hood (MentraOS) is open source, which means you own the app, the data, the glasses, the deployment. You can start deploying smart glasses now. Mentra does the glasses OS, hardware, and infra - you build the app and deploy it. What will you build?

@andrewjiang @MentraGlass Yep, later this year

@caydengineer @MentraGlass do you think you'll get a version out with display next?

@WSWoodcarving @MentraGlass @kick Yes you can!

@caydengineer @MentraGlass Hey, will the glasses stream to @kick

@TRACaveMan @MentraGlass @TracNetwork Use the SDK and you certainly can!

@caydengineer @MentraGlass Can mentraOS plug into @TracNetwork

@RemySinc @MentraGlass @openhome You can certainly use the SDK to hook Mentra Live up to openhome or anything you want.

@caydengineer @MentraGlass Can they run @openhome OS

@dirtman @MentraGlass Yep there's an open SDK: docs.mentraglass.com

@caydengineer @MentraGlass I assume I can hook up and ai api I want to the sensors ?

@GregCook2011 @MentraGlass San Francisco and Shenzhen

@caydengineer @MentraGlass Where are you located now ?

Start building: MentraGlass.com/Live

@ID_AA_Carmack Hurts the soul. We wrote Typescript binders for the Google LC3 lib so we can stream LC3 compressed audio from a smart glasses microphone over BLE to a phone and then send straight to cloud, and then decode in the cloud.

When you stream Spotify to Bluetooth speakers or headphones, the audio comes over the network lossily compressed with Vorbis or AAC codecs, is then decoded on your device to 48 Khz raw samples, then the Bluetooth stack lossily re-compresses it with SBC or AAC codecs before sending it over the airwaves to the speakers. I don’t have “golden ears” to pick apart audio quality like I can with, say, missing gamma correction on texture filtering, but that still hurts my system optimization soul. It is likely over-optimization, but It would be cleaner if there were a way to send bluetooth-ready, compressed audio directly.

Mentra tower

Share your smart glasses view with the Mentra community We just launched the Mentra Gallery, a place where the community can share the world as they see it. Submit your photos/videos for a chance to be featured in our official gallery. Your perspective. Your moment. Seen through Mentra.

Check it out: MentraGlass.com/Notes

We built and shipped smart glasses from scratch in 12 months. The hardware wasn't the hardest part. A year ago we launched MentraOS 1.0, the first open operating system for smart glasses. Early adopters could install apps and get new experiences on their glasses. Builders finally had a real dev platform. But it only supported glasses with displays. We quickly grew to thousands of users, and hundreds of them asked for the same thing: camera glasses they could actually build on. Glasses that were unlocked, that didn't stream your view straight to Meta. Glasses that put you in control. Notes, AI, live streaming, recording, take calls, talk to AI. So we built them. In February we shipped the first 1,000 Mentra Live smart glasses. This week we ship batch 2. But here's what's interesting. We shipped with a broad feature set, and the user signal was immediate: AI notes. Not streaming. Not general-purpose AI. Notes. Users love it, they're filing bugs on it, they're telling us exactly how to make it better. That's the signal we wanted. So we've gone all in. Notes is one of the first times I've genuinely gotten sustained value from smart glasses (alongside translation in China!). Expanding your memory while staying present in the moment, capturing what what matters from what you hear and what you see. Less gimmick, more augmentation. In a world where everyone is racing to build the everything device, focus wins.

@ashebytes @sabakarimm Baoan or Nanshan

@sabakarimm we get into the 2 ways of developing wearables at 5:49 but Andy flagged he's not sure on the best place in shenzhen for an office. @caydengineer (hello!) may know?

On building consumer wearables in 2026 In conversation with Andy Kong @oldestasian interested in hardware? me too. fascinating chat, amazing lab aesthetic 00:00 quiz-bowl buzzers to the SF wearables scene 02:25 pebble, kickstarter, and what's changed 05:49 2 ways of developing wearables 06:59 CMs, budgets, and designing your own board 09:53 using Alibaba chat to source partners 14:07 planning a shenzhen trip 18:27 board vs mold design 25:53 boston vs sf vs nyc for wearables 30:00 LLMs + board design 33:50 is hardware still hard? 36:22 cubesats + chargerless 37:11 validate publicly, quickly

@whysoserio65116 @a_israelov This month!

@caydengineer @a_israelov Hi, when the mentraos is coming for the even realities g2?

My cofounder spent the seed round on La Croix and Claude Code. I got so mad I forgot what we were even fighting about. Good thing my smart glasses take notes of everything I hear and see. Convos, whiteboards, charts, whatever’s in front of me.

The engineers have their priorities

The engineers have their priorities

Trying to bring the team out for an offsite But these engineers only care about 1 thing

@darekShips @a_israelov It's in my notes and I will sue you bro

@caydengineer @a_israelov I genuinely tough that you are saying Busy water, I think I'm gonna patent that name for energy drink. Unless your glasses also captured word busy, hence giving you the proof and ownership of that name.