Mercor acquired Sepal AI in February 2026; Sepal's website states the company has been acquired by Mercor and is marked closed.
SourcePublic company, workplace, funding, and market signals
Sepal AI was a San Francisco-based, YC Summer 2024 data-development company for AI labs and enterprises. It built a cloud-native agent dataset factory combining human experts, synthetic augmentation, quality control, benchmarks, evaluations, and RL environments; the company was acquired by Mercor in February 2026.
Primary product
Cloud-native agent dataset factory for training data, custom benchmarks, evaluations, and RL environments
Founded
2024
Headquarters
San Francisco, California, United States
Team size
60-70
Industry
Technology, Information and Internet
Sub-industry
AI data development / evaluation platform
Offices
0 jobs at Sepal AI
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Business model
Stage
Seed
Total raised
$625K
Latest round
Seed · Jan 2025
Frontier-ambition, quality-and-clarity, end-to-end enablement, operational excellence, and human-first; low-ego and execution-oriented.
Visa sponsorship
Limited
Compensation
Public employee comp shown on a YC job posting included $130k-$180k base salary plus 0.20%-0.90% equity for a senior software engineer. Public expert-hub materials also show hourly expert rates around $70-$112/hr, plus flexible hours and performance bonuses.
Benefits
Pricing
Custom enterprise/project-based pricing; expert work appears billed by hour for contractors.
Differentiators
Technology
Customers
Competitors
Estimated revenue
around $2M ARR (third-party estimate; figures vary across sources)
Estimated monthly visits
8.1K
Traffic estimate as of Jun 2026
Mercor acquired Sepal AI in February 2026; Sepal's website states the company has been acquired by Mercor and is marked closed.
SourceOrrick · Feb 2026
Mercor acquired Sepal AI in February 2026 and described it as a data-development platform for training data, benchmarks, and RL environments.
LinkedIn · Jun 2025
Sepal AI announced a talent-search product aimed at speeding recruitment of experts for training, evaluations, and model testing.
Y Combinator · May 2025
YC highlighted Sepal AI's role in pre-launch testing for Anthropic's Claude 3.7 Sonnet, reinforcing its position in frontier-model evaluation and safety work.
Startup Intros · Sep 2024
A third-party funding note reported a $500K seed round for Sepal AI in September 2024.
LinkedIn · Aug 2024
Sepal AI announced its launch and described its frontier-data and tooling platform for AI engineering and research teams.