Company profile
Lemma Research (YC)
RL environments simulating complex legal reasoning
- Industry
- Technology, Information and Internet
- Employees
- 2
- Headquarters
- San Francisco, CA
- Founded
- 2025
- LinkedIn followers
- 179
- Office locations
- 1
Lemma Research (YC) company summary
Lemma Research (YC) is a company in the Technology, Information and Internet industry, headquartered in San Francisco, CA, founded in 2025. On LinkedIn the company has around 2 employees and 179 followers. Its listed specialties include AI, AI agents, Reinforcement Learning.
What technology does Lemma Research (YC) use?
No technologies detected yet. Warmrank rechecks company websites on a rolling basis.
About Lemma Research (YC)
Lemma Research (YC) develops reinforcement learning environments that model complex legal reasoning. Today’s language models can summarize documents and recall case law, but they struggle with applying doctrines to novel fact patterns or ambiguous laws. Lemma’s simulations train AI systems on the adversarial, sequential nature of legal reasoning. These foundational reasoning capabilities unlock performance across all legal workflows, since tasks like case analysis, motion drafting, discovery strategy, and settlement negotiation each depend on the model's underlying ability to reason through legal problems. Founded by Stanford alumni Sina Mollaei and Sherwin Lai, the company is backed by Y Combinator. Sherwin deferred his acceptance from Harvard Law School and left his ML engineering role at YouTube to build Lemma full-time. Sina turned down an offer to work in Quant Trading to build Lemma alongside Sherwin.
Specialties
Where is Lemma Research (YC) located?
Lemma Research (YC) lists 1 location.
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Frequently asked questions about Lemma Research (YC)
What does Lemma Research (YC) do?
Lemma Research (YC) develops reinforcement learning environments that model complex legal reasoning. Today’s language models can summarize documents and recall case law, but they struggle with applying doctrines to novel fact patterns or ambiguous laws. Lemma’s simulations train AI systems on the adversarial, sequential nature of legal reasoning. These foundational reasoning capabilities unlock performance across all legal workflows, since tasks like case analysis, motion drafting, discovery strategy, and settlement negotiation each depend on the model's underlying ability to reason through legal problems. Founded by Stanford alumni Sina Mollaei and Sherwin Lai, the company is backed by Y Combinator. Sherwin deferred his acceptance from Harvard Law School and left his ML engineering role at YouTube to build Lemma full-time. Sina turned down an offer to work in Quant Trading to build Lemma alongside Sherwin.
How many employees does Lemma Research (YC) have?
Lemma Research (YC) has around 2 employees on LinkedIn.
Where is Lemma Research (YC) headquartered?
Lemma Research (YC) is headquartered in San Francisco, CA.
When was Lemma Research (YC) founded?
Lemma Research (YC) was founded in 2025.
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