Sources: Thinking Machines Lab is raising $5B led by Accel at a $40B pre-money valuation, more than tripling its valuation from its last public round last year

If you pay for advanced AI coding models, the price for Tinker may fall or its capabilities may expand.

AI startup Thinking Machines Lab is reportedly raising $5 billion in a new funding round, with Accel leading the investment. The company is set to achieve a pre-money valuation of $40 billion, more than tripling its valuation from its last public round of over $10 billion last year. This substantial valuation increase signals continued investor confidence in AI labs, even amidst a fierce competition for talent. Thinking Machines Lab, founded by former OpenAI CTO Mira Murati, launched its first product, Tinker, a system for fine-tuning large language models, last year. The company has attracted significant talent but has also experienced departures of founding members to rival AI firms such as Meta and OpenAI. This new funding round would significantly boost its resources as it navigates the competitive AI landscape.

The significant capital infusion into Thinking Machines Lab at a $40 billion valuation underscores a sustained investor appetite for foundational AI research and development, despite increasing competition and talent drain. This funding enables the company to scale its operations, accelerate product development, and potentially attract top-tier talent away from rivals by offering competitive compensation and ambitious projects.

This valuation suggests that the market is prioritizing the potential of AI foundational models and the expertise behind them, even if commercialization is still nascent. The ability of Thinking Machines Lab to secure such a large round, even after losing key personnel, indicates that its core technology and leadership are perceived as highly valuable assets in the ongoing AI arms race.