# Tokenless

[Tokenless on Hacklab](https://hacklab.so/org/tokenless)

Startup · 3 people on Hacklab

## Links

- [Website](https://usetokenless.com/)
- [Y Combinator](https://www.ycombinator.com/companies/tokenless)
- [LinkedIn](https://www.linkedin.com/company/usetokenless/)
- [X](https://x.com/usetokenless)

## About

<!-- hacklab:yc-profile -->

## YC company profile

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.

- **YC batch:** Summer 2026
- **Founded:** 2026
- **Team size:** 3
- **Location:** San Francisco
- **Country:** US
- **Status:** Active
- **Industry:** B2B
- **Stage:** Early
- **Tags:** Developer Tools, Machine Learning, Reinforcement Learning, B2B, AI
- **YC partner:** Vivian Midha Shen

## Founders

### 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.

[LinkedIn](https://www.linkedin.com/in/rohit-agarwal-b647951ba/) · [X](https://x.com/Rohit_Writes)

### 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.

[LinkedIn](https://www.linkedin.com/in/andrew-liu-b50873261/) · [X](https://x.com/landrew7363)

### Kev Wang — Founder

Founder at Tokenless. Prev MTS at SkyPilot building multi-cloud GPU infra for top neolabs, Founding Engineer at Eventual from seed to Series A building the data engine for physical AI, EECS at UC Berkeley.

[LinkedIn](https://www.linkedin.com/in/kevinzhiwang/) · [X](https://x.com/kevzwang)

[Source: Y Combinator](https://www.ycombinator.com/companies/tokenless) · Retrieved 2026-11-02. Company information is self-reported on YC.

## Current staff

- [Andrew Liu](https://hacklab.so/andrew-liu-2) — Founder (Present)
- [Kev Wang](https://hacklab.so/kev-wang) — Founder (Present)
- [Rohit Agarwal](https://hacklab.so/rohit-agarwal) — Founder (Present)