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Tokenless

We find flaws in RL environments and evals and help you fix them.

Tokenless is an applied AI research lab. Our goal is to end reward hacking. We do research and build tools to detect issues with environments and evals, understand model behavior in those environments, and prevent those issues from happening. Correcting them makes training more effective, makes model performance easier to interpret, and is crucial to solving the AI alignment problem. If you’re training models with RL, building environments, or running agent evals, and want more confidence in your environments, we're here to help.
Active Founders
Rohit Agarwal
Rohit Agarwal
Founder
Founder at Tokenless (YC S26). CS PhD student at Princeton PLI, Hazan Lab, Google Deepmind. Previously at Duolingo and theory research at Berkeley, was EECS #1 BS grad in 2024.
Andrew Liu
Andrew Liu
Founder
Founder at Tokenless (YC S26). Formerly a researcher at UC Berkeley working on language documentation tools. BA in Computer Science, Mathematics, and Linguistics from UC Berkeley. Previously TA'd CS61C.
Kevin Wang
Kevin Wang
Founder
Founder at Tokenless. Prev MTS at SkyPilot building multi-cloud GPU infra for top neolabs, Founding Engineer at Eventual (raised $30M Series A) building the data engine for physical AI, EECS at UC Berkeley.
Company Launches
Touchy 🙌: Voice-first AI Assistant for iPhone that understands the world around you
See original launch post

TL;DR: We’re building Touchy 🙌, a voice and image-first AI assistant for the iPhone that personalizes itself to you. You can activate Touchy from your lock screen to instantly get things done across your apps or get answers about the world around you. Touchy is free to try, get it here: https://apps.apple.com/us/app/touchy-ai-at-your-fingertips/id6798889392

https://youtube.com/shorts/IJNucvAZ_-k

The Problem

You probably know the feeling:

You ask the assistant on your phone, across the room, to send a colleague a message.

It cheerfully replies that it found 10 search results for “text Bob on Slack”.

So you trudge to your phone, find the app, open the DM, and begrudgingly type out your message instead.

We wanted a better personal assistant, one that had the intelligence and integrations we’ve come to expect from our AI agents, with the convenience of one that was native to your devices. We also believe that for AI to truly be personal, it needs to be deeply integrated into your life and the world around you. Right now, AI systems are constrained largely to using digital tools, yet the physical world is rich with audio and visual information that your phone is capable of receiving.

What We Built

So we built Touchy. One button press and you're instantly talking to an assistant that can see what you see, remember what you've said, and take action across all the tools you use. 

What sets Touchy apart:

  • Reimagined UX. Touchy is a fast, fully iOS-native app with a unique interface that is delightful to use and brings it closer to the world around you.
  • Sees and hears the world around you. Speak to Touchy and it can speak back. Easily snap a photo with the app’s camera to give Touchy access to what you’re seeing.
  • Gets things done across your apps. Touchy comes with built-in integrations with 1,000+ popular apps, as well as iOS-native capabilities such as you contacts and location.
  • Make it yours over time. You chat with Touchy in a single, continuous conversation. It automatically collects memories and preferences, and tailors itself to be more useful to you as you use it.

It's built to give you your attention back. Ask it something, let it act, and get back to your day — no app fighting for your attention.

uploaded image

The team

We’re Rohit, Andrew, and Kev. Before this, Rohit was doing a PhD on AI alignment at Google DeepMind Princeton and graduated #1 in Berkeley EECS. Andrew built educational software that scaled to half a million students worldwide. Kev was a startup founding engineer, developing data and GPU infrastructure that power many of the leading AI neolabs today. 

We met during undergrad at UC Berkeley, and we’re coming back together to research, productionize, and scale the future of personal technology.

Our ask

If you have an iPhone, download Touchy and try it out: https://apps.apple.com/us/app/touchy-ai-at-your-fingertips/id6798889392

We would love to learn what people find themselves using Touchy for, and what they wish they could use it for. You can also report bugs by shaking your phone or just telling Touchy. You can also reach us at founders@touchyapp.com

YC Photos
Tokenless
Founded:2026
Batch:Summer 2026
Team Size:3
Status:
Active
Location:San Francisco
Primary Partner:Vivian Midha Shen