# A GeneBench-Pro Co-Author Leaves OpenAI to Build a Startup Selling Reinforcement-Learning Data

The new venture aims to generate specialized datasets for post-training, on the argument that data quality now limits model gains more than scale.

- Published: 2026-08-01T05:44:51.300Z
- Canonical: https://polylog.news/ai/2026-08-01/a-genebench-pro-co-author-leaves-openai-to-build-a-startup-s
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news)

According to the AI ML Big Data channel, Andrew Ho, a co-author of the GeneBench-Pro benchmark, has left OpenAI to start a company focused on generating high-quality reinforcement-learning datasets for training large language models. The st…

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