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.
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