Mira Murati’s Thinking Machines Lab Raises $2B in Largest Seed Round Ever; Now Worth $12B

July 16, 2025 – In a shocking development that is reverberating through the AI community, Mira Murati’s new company, Thinking Machines Lab (TML), announced that it has closed a record-breaking and unprecedented $2 billion in seed funding, resulting in the seed-stage company being valued at a staggering $12 billion.

The announcement, made early Wednesday morning, is the largest-ever seed round in the tech industry. But beyond the astounding numbers, the real intrigue lies in the backstory, bold vision, and the star-studded team Murati has assembled to redefine AI and reshape technology’s role in society.

A Visionary Behind the Wheel

Mira Murati, former Chief Technology Officer of OpenAI, played a pivotal role in the development of generative AI tools such as ChatGPT, DALL·E, and Codex. These contributions have made her one of the most influential figures in artificial intelligence.

Now, with Thinking Machines Lab, she embarks on a groundbreaking mission to create what she calls “true thinking machines.“

“We’re not just creating tools which mimic intelligence,” Murati said. “We are constructing systems that can reason, reflect, and develop adaptive intelligence that works more in line with how humans think and learn.”

Her departure from OpenAI earlier this year raised eyebrows, but insiders now view it as a strategic move to freely pursue her radical vision.

What is Thinking Machines Lab?

Thinking Machines Lab (TML) positions itself as a research-first AI lab, focused on developing the next generation of general-purpose intelligent systems. Unlike most AI firms targeting commercial markets, TML’s core mission is rooted in long-term foundational research.

TML blends:

• Cognitive science
• Neuroscience
• Machine learning
• Emergent behavior

This multidisciplinary approach aims to build systems that can reason and learn autonomously.

According to internal sources, TML is already building its first prototype: a “Dynamic Reasoning Engine”—a system capable of learning, adapting, and performing higher-order thinking in real time. This places the lab’s goals somewhere between classical AGI development and practical autonomous agents.

The Powerhouse Behind the Lab

Though Mira Murati leads the initiative, the company has also announced two co-founders:

• Dr. Samuel Kwan

• A pioneering theoretical neuroscientist
• Former Principal Investigator at MIT
• Expert in neural plasticity and memory encoding
• Will shape how TML’s systems emulate human cognitive processes

• Dr. Aisha Raman

• Prominent AI ethics researcher
• Formerly with DeepMind and UNESCO
• Her inclusion reflects TML’s commitment to safe and responsible AI from inception

Murati highlighted the interdisciplinary nature of the team:

“We are putting together perspectives that historically have not been working together at this scale. It’s not just building smart machines; it’s knowing what smart means and how best to align intelligence with human values.”

A $2 Billion Seed Round: Who’s Behind It?

The historic $2 billion seed round included a range of heavyweight investors:

• Sequoia Capital (Lead)
• Andreessen Horowitz (Lead)
• Tiger Global
• Qatar Investment Authority
• Temasek Holdings (Singapore)

Most seed rounds are in the single-digit millions. This massive funding has shattered industry norms and signals extraordinary confidence in Murati’s leadership and vision.

“Mira is that special type of leader who brings a combination of technical acumen and a daring vision. Thinking Machines Lab is more than a company—it’s a movement to rewrite the rules of what AI can be.”
— Priya Khanna, Partner at Sequoia Capital

What Comes Next?

Despite its valuation and massive funding, TML has yet to release a product or prototype to the public. However, insiders point to a bold roadmap that includes:

• A cognitive model for real-time multi-modal reasoning
• A custom-built hardware infrastructure for adaptive learning models
• University partnerships to publish open research and benchmarks
• Ethical review boards integrated into all company decisions

In an internal memo, Murati wrote:

“TML will not take a hurried route to commercialization. We aren’t after quick wins. We’re laying the foundation for the next generation of intelligence.”

That said, many believe TML’s innovations will influence real-world AI applications within 2–3 years through:

• Spin-out companies
• Open-source research
• Strategic collaborations

Reactions from the AI Community

The AI community responded quickly, and opinions are split.

Some scientists are enthusiastic about a lab that can pursue foundational breakthroughs without external pressure. Others worry about consolidation of AI capabilities among elite organizations.

Elon Musk weighed in on X (formerly Twitter):

“Mira’s new lab could be amazing — or terrifying. Depends on what they use it for. Hope they will further center safety with this.”

In contrast, Dr. Fei-Fei Li, a leading AI researcher, praised the development:

“An exciting step toward a deeper understanding of intelligence.”

Conclusion: A New Dawn for AI?

With Mira Murati at the helm, a visionary co-founding team, and $2 billion in fresh funding, Thinking Machines Lab is now one of the most well-capitalized and closely watched AI ventures in history.

Whether it can fulfill its lofty promises remains to be seen. But one thing is certain:

Murati and her team are not just playing the AI game—they’re rewriting the rules.

As the world watches, Thinking Machines Lab could very well become the proving ground for the next great leap in the partnership between human and machine intelligence.