Jed McCaleb, a cryptocurrency billionaire worth approximately $3.9 billion, is investing $1 billion to develop artificial general intelligence (AGI) by studying how the human brain learns and translating those principles into AI systems. This represents a significant bet against the current dominant approach in AI development, which relies heavily on scaling up transformer models like those powering ChatGPT. McCaleb's nonprofit Astera Institute is now joining other well-funded ventures, including former OpenAI co-founder Ilya Sutskever's SSI (Safe Superintelligence Inc.), in exploring whether brain-inspired AI architectures could be the key to achieving AGI more efficiently and safely than current methods.

Why Is a Crypto Billionaire Suddenly Focused on Neuroscience?

McCaleb founded Astera Institute in 2020 with his spouse Seemay Chou, a former University of California, San Francisco biology professor. While the institute has long maintained an AI focus, it recently zeroed in on brain-inspired approaches, prompting McCaleb's nine-figure commitment. In a two-story brick office building in Emeryville, California, neuroscientists are already planning experiments that would fit mice with tiny brain-computer interfaces to record neural activity patterns while the animals perform basic tasks like navigating a maze. The goal is ambitious: build a library of mouse brain states that reliably map to specific perceptions and actions, then translate those findings into code and new AI architectures .

McCaleb's skepticism about the current AI trajectory is straightforward. He believes transformers, the neural network architecture underlying most modern large language models (LLMs), are incomplete.

"Transformers are probably just doing one aspect, this kind of prediction," McCaleb explained, adding that key elements like planning, decision-making and motivation are still missing.

Jed McCaleb, Founder of Astera Institute

This critique echoes concerns shared by other AI researchers who question whether simply making models larger will lead to AGI, or whether fundamentally new approaches are needed .

What Makes This Different From Other AI Research Efforts?

Astera's approach differs from typical AI startups and corporate labs in several key ways. The institute plans to publish its research openly, echoing early OpenAI before the company shifted to a secretive, for-profit structure. This transparency strategy is designed to attract mission-driven researchers who may not be swayed by the massive compensation packages offered by OpenAI and major tech companies. Dileep George, a former DeepMind executive hired to lead Astera's AGI efforts, previously co-founded two neuroscience-focused AI companies: Vicarious AI (acquired by Google parent Alphabet) and Numenta (founded with PalmPilot creator Jeff Hawkins). George hopes to grow the lab to 30 researchers this year .

"A philanthropy-supported approach is better at this time because there are core research problems to be solved. Startups have to worry about the next fundraise and the next demo that will drive the fundraise, and that's a distraction," George stated.

Dileep George, Former DeepMind Executive, Leading Astera Institute's AGI Efforts

The broader research landscape is shifting in a similar direction. Former Meta Chief AI Scientist Yann LeCun recently launched a new AI research lab called AMI that raised a $1 billion seed round to advance "world models," which are mental representations of the world around us. This suggests that brain-inspired AI is gaining credibility across the industry, not just at Astera .

How Does Brain-Inspired AI Promise to Be Safer and More Transparent?

McCaleb argues that brain-inspired AI could address one of the most pressing concerns in AI development: interpretability. Today's frontier models are enormous and opaque; understanding what they "know" and why they produce specific outputs remains extremely difficult.

"If it works more like the human brain, there's a better chance we can understand it rather than being this kind of abstract mathematical thing that ends up being very alien," McCaleb noted.

Jed McCaleb, Founder of Astera Institute

This transparency advantage could make advanced AI systems more trustworthy and controllable as they become more powerful .

Steps to Understanding Astera's Research Strategy

• Brain Mapping Phase: Researchers will implant brain-computer interfaces in mice, monkeys, and eventually humans to record neural activity patterns during specific tasks and perceptions.
• Translation to Code: Findings from brain experiments will be converted into computational principles and new AI architectures that mimic how biological brains process information.
• Feedback Loop: New AI architectures will suggest new hypotheses to test in biological systems, creating a continuous cycle of discovery between neuroscience and AI development.
• Open Publication: Unlike many AI labs, Astera plans to publish research openly to attract mission-driven talent and accelerate the field's progress.

The ambitions extend beyond just building better AI. Researchers at Astera are exploring science fiction-sounding possibilities like using brain-computer interfaces to "write" minds, inserting specific knowledge or images directly into someone's thoughts, or even uploading directions to navigate an unfamiliar space. While these applications remain speculative, they illustrate the scope of what McCaleb and his team believe is possible when AI is built on principles derived from neuroscience .

McCaleb's commitment to this research represents a significant shift in his own priorities. "Crypto was, in some sense, a big detour," he explained. "I'd been wanting to work on AI the whole time, but only really got the chance once I stepped back from crypto. I think AI is going to be the most transformative thing that humans ever create. So it's the most compelling thing to work on." Beyond Astera, McCaleb also spends several days a week at Vast, his space company in southern California, which is fundraising at a $2 billion valuation and aims to replace the International Space Station. Last year, he and his spouse pledged to give away the majority of their wealth through the Giving Pledge, a commitment created by Bill Gates, Melinda French Gates, and Warren Buffett to direct charitable giving .

As the AI industry continues to debate whether scaling transformers will lead to AGI or whether new architectures are needed, McCaleb's $1 billion bet on brain-inspired AI signals that serious technologists and researchers believe the answer lies in understanding biology more deeply. Whether this approach succeeds remains an open question, but the commitment of resources and talent suggests that the era of transformer-only AI development may be entering a new phase.