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AfterQuery

We teach machines how experts think.

Surveying1 open roleSan Francisco, California, United States

About AfterQuery

AfterQuery is an applied research lab that curates data solutions for foundation model development, building expert-generated training datasets and reinforcement learning environments for AI labs and enterprises. Its offerings include supervised fine-tuning datasets, reinforcement learning with expert-designed rubrics, agent environments (API/MCP), and computer-use trajectories, drawing on a network of domain experts across professional fields such as finance, law, medicine, and software engineering.

Industry
Artificial intelligence / AI training data
Headquarters
San Francisco, California, United States
Company size
30 (per company's Y Combinator listing)
Founded
2025

What we do

Supervised Fine-Tuning (SFT) datasetsReinforcement Learning with expert-designed rubricsAgent Environments (API / MCP)Computer Use TrajectoriesDatasets and benchmarks for frontier AI models

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