She may not have the same name recognition as other tech execs like Tim Cook, Bill Gates, or Mark Zuckerberg—not yet, anyway—but Mira Murati is one of the most-watched entrepreneurs in Silicon Valley. The former chief technology officer from OpenAI, who left to launch her own AI startup last year, just celebrated a major milestone: Her company, Thinking Machines Lab, just launched its first product this week , called Tinker. Rather than be another generative-AI chatbot like ChatGPT, Tinker is designed to help researchers and developers fine-tune AI models without the need to manage massive computing infrastructure. The launch represents the first commercial product from Thinking Machines, which raised a record-breaking $2 billion in seed funding at a $12 billion valuation.

Murati, the 3

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