Companies / Data vendor
Sepal AI
Data research company that built training data, evaluation benchmarks and reinforcement learning environments for frontier LLMs (acquired by Mercor in February 2026). Recorded here: what it sells, in its own words and 1 funding event.
San Francisco, California, USFounded 2024sepalai.comLatest record 15 Oct 2026
What Sepal AI sells
In its own words, read on its own site 15 Oct 2026. On the vendor register
- What it sells
Datasets: “We’ve built Sepal AI - the data development platform that enables you to curate useful datasets.” ycombinator.com
Expert and human data: “We bring data generation tooling, human experts, synthetic data augmentation, and rigorous quality control into one platform so you can manage the production of high-quality datasets.” ycombinator.com
Evaluations and benchmarks: “Cell and Molecular Biology Benchmark: An original benchmark to evaluate complex reasoning across models.” ycombinator.com
- Where its data comes from
Made by experts and contractors: “We’ve built a network of 20k+ experts across STEM and professional services” ycombinator.com
Generated: “We bring data generation tooling, human experts, synthetic data augmentation, and rigorous quality control into one platform” ycombinator.com
- Buys data from owners
- Its pages do not say it does.
- Areas its pages name
- Finance, Medical, Science
Funding and acquisitions
- 6 Feb 2026EventAcquired by Mercor
Cite this
AIData.Broker, “Sepal AI in the AI training data market”, reviewed 15 Oct 2026. https://www.aidata.markets/companies/sepal-ai
Free to reuse under CC BY 4.0 if you credit AIData.Broker and link to this page. Each row names the publication that stated it, and words quoted from a source keep that source's own terms.