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Unsloth AI

San Francisco, CA, USA8+ employeesSeed raised
Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.

Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.

YC S24

About the Company

At Unsloth, we’re making custom AI as accessible as possible while reaching the widest possible audience. We're known for fixing critical bugs in LLMs like Gemma, Llama, and Phi-4, as well training bugs like Gradient Accumulation. If you want to work at a startup at the edge of innovation, you’re in the right place.

Based in San Francisco, Unsloth AI (YC S24) is backed by top-tier VCs and angels like Logan Kilpatrick (Lead Product at Google AI), Cliff Obrecht (Canva co-founder) and Jon Oringer (Shutterstock founder).

With 29K+ GitHub stars, 8M+ monthly downloads on Hugging Face, and adoption by Canva, LinkedIn, NASA, NVIDIA, and more, we’re shaping the future of AI. Join us and help build AI the way it was meant to be.

Tech Stack

At Unsloth, we’re making custom AI as accessible as possible while reaching the widest possible audience. We're known for fixing critical bugs in LLMs like Gemma, Llama, and Phi-4, as well training bugs like Gradient Accumulation. If you want to work at a startup at the edge of innovation, you’re in the right place.

Based in San Francisco, Unsloth AI (YC S24) is backed by top-tier VCs and angels like Logan Kilpatrick (Lead Product at Google AI), Cliff Obrecht (Canva co-founder) and Jon Oringer (Shutterstock founder).

With 29K+ GitHub stars, 8M+ monthly downloads on Hugging Face, and adoption by Canva, LinkedIn, NASA, NVIDIA, and more, we’re shaping the future of AI. Join us and help build AI the way it was meant to be.

Founders

Daniel Han
Daniel Han

I was at NVIDIA making algorithms like TSNE 2000x faster. I also found and fixed 20+ bugs in open source LLMs like Gemma, Llama, Mistral and Phi. I also maintain the OSS package Hyperlearn making ML faster for NASA & Microsoft engineers.

Michael Han
Michael Han

Hi guys - love building, designing and more. If you ever want help with fine-tuning or LLMs be sure to reach out!

Ready to start your space career at Unsloth AI?

Shipping like we're funded. We're not. No affiliation.

Sequoia logo
Y Combinator logo
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