Lmsys Corp
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Develops open-source AI tools and data to advance transparent research. For fiscal year 2025 it reported $889K in revenue, $203K in expenses, and $687K in net assets.Pt I
Summary of the Filing
Where the work happens
Open Research and Model Development
LMSYS Corp leads collaborative efforts in developing open large language models and related systems. Through initiatives such as Vicuna, Chatbot Arena, and LMSYS Chatbot Leaderboard, we support open benchmarking, transparency, and knowledge sharing across the AI research community.
Ai Benchmarking and Transparency Initiatives
The Organization develops and maintains public evaluation platforms that allow researchers and the public to test and compare AI models in real time. By operating open, accessible benchmarking environments, LMSYS Corp promotes fairness, reproducibility, and accountability in AI performance measurement.
Educational Outreach and Community Engagement
LMSYS Corp hosts workshops, tutorials, and educational events to bridge the gap between cutting-edge AI research and broader public understanding. We engage with universities, research groups, and open-source communities to support hands-on learning opportunities and promote best practices in responsible AI development.
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Identity & Classification
Governance & Policies
Officers, Directors & Key Employees
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Statement of Revenue
Statement of Functional Expenses
Balance Sheet
Financial Metrics
Same NTEE category, revenue band, and state where available. Descriptive — not a grade.
| Metric | This org | Peer median | Percentile |
|---|---|---|---|
| Program ratio | 97% | — | — |
| Overhead ratio | 3% | — | — |
| Fundraising cost ratio | 0% | — | — |
| Accounting fee ratio | 3% | — | — |
Straight from the Form 990 — descriptive, not an evaluation. A ratio is hidden when its base is zero or too small to be meaningful; the dollars are always shown.
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