Hi.
I'm Antoine Sakho.
Product leader for AI safety and security at Cohere. Previously at Meta / WhatsApp, shipping AI systems that protect billions of users. Before that, Head of Product at Busuu, which was later acquired for $436M. Investor in 30+ startups (incl. Anthropic).
Work so far.
Building safe, secure, sovereign AI
I lead safety and security work across post-training and Cohere’s platform, from evaluating model behaviour to protecting sensitive data in production.
Making WhatsApp safer
At WhatsApp, I led product for Safety & Integrity, spanning high-severity harms and child safety. I shipped an AI-driven enforcement system that improved accuracy on adversarial traffic while reducing reliance on third-party vendors.
Meta Rolls Out New AI Content Enforcement Systems While Reducing Reliance on Third-Party VendorsHelping people learn a language
As Head of Product, I led the team working on learning, engagement and subscriptions. Busuu was later acquired by Chegg for $436M.
Student Media Giant Chegg Acquires Language-Learning Startup Busuu for $436MMy first company
I co-founded Skimm to let people pay in shops with their phones. We raised €300K and brought the product into stores, including Subway.
Companies I’ve backed.
I’ve invested in 30+ early-stage companies. These are a few of them, across AI, learning, relationships and health.
Say hello.
Building a product, raising a first round, or putting together a conference? Tell me about it. Surf recommendations are welcome too.