Tags: Tinker

Barret Zoph and Luke Metz, cofounders of the AI startup Thinking Machines Lab, have left the company to rejoin OpenAI. The move was announced by OpenAI’s applications chief Fidji Simo in an internal memo. A source alleged that Zoph was dismissed for sharing confidential information, a claim OpenAI did not verify. Mira Murati confirmed Zoph’s departure and named Soumith Chintala as the new chief technology officer. The departures also include Sam Schoenholz, who is returning to OpenAI, and follow the earlier exit of cofounder Andrew Tulloch to Meta. Thinking Machines Lab continues to develop its Tinker platform for customizing AI models. Ler mais

Thinking Machines Lab, a startup founded by former OpenAI researchers and led by CEO Mira Murati, has launched its first product, Tinker. The platform automates the fine‑tuning of frontier AI models, supporting Meta's Llama and Alibaba's Qwen and offering both supervised and reinforcement‑learning methods via an API. Tinker abstracts the complexities of distributed GPU training while preserving control over data and algorithms. The company, which raised $2 billion in seed funding at a $12 billion valuation, is initially offering free access to vetted users and plans to introduce safeguards against misuse. Murati says the goal is to make advanced AI capabilities accessible to a broader community. Ler mais