Crossing Minds
The business, the turning points, and the decisions behind them.
Some sections are still being researched1 / 4
Sections to complete：02
01 / WHAT IT BUILT
What the company did
Crossing Minds was a San Francisco AI startup founded in 2016 by AI researchers including Sebastian Thrun, Emile Contal, and Alexandre Robicquet. It built privacy-first AI recommendation systems for e-commerce platforms: analyzing customers' real-time on-site behavior to generate personalized shopping suggestions without tracking users across the internet or compromising personal data. Its technology stack included a custom version of gradient descent for training neural networks, embedding generation optimized for shopping preferences, and RAGSys, a tool for integrating retrieval-augmented generation into AI applications. The company served brands including Chanel, Intuit, Udacity, and Anthropic, and raised more than $13.5 million from investors including Index Ventures, Shopify, Plug and Play, and Radical Ventures. On June 26, 2025 the cofounders announced the team was joining OpenAI - an acqui-hire aimed at strengthening OpenAI's personalization and recommendation capabilities - and Crossing Minds stopped accepting new clients.
02 / FAILURE REASONS
Material for this section is being gathered and checked. It will appear here once ready.
03 / EVENT HISTORY
Events in the structured record
- Founded
AI researchers Sebastian Thrun, Emile Contal, and Alexandre Robicquet founded Crossing Minds to build privacy-first recommendation AI for e-commerce.
- Stopped client onboarding
Crossing Minds stopped accepting new clients, signaling a pivot toward a strategic transition.
- Team joins OpenAI
On June 26, 2025 the cofounders announced the team was joining OpenAI; co-founder Alexandre Robicquet moved to OpenAI's Research, Post-training and Agents team.
04 / CONTEMPORARY REBUILD ASSESSMENT
Difficulty of rebuilding this project today
Material for this section is being gathered and checked. It will appear here once ready.
Overall assessment: Not completed
05 / CAUSAL CHAIN
How the factors connect
- 01
Founded in 2016 by Sebastian Thrun and others as a privacy-first AI recommendation engine for e-commerce; raised over $13.5 million.
- 02
On June 26, 2025 the founders announced the team was joining OpenAI in an acqui-hire, and the company stopped taking new customers.
- 03
No audited loss figure was publicly disclosed.