Famed roboticist and iRobot founder Rodney Brooks has sounded the alarm on a humanoid robot investment bubble. Heβs not the only one.
In a recent essay, Brooks calls out the billions of venture dollars being poured into humanoid robot companies like Figure. His take: Despite the amount of money being injected into the industry, humanoids wonβt be able to learn dexterity β or the fine motor movements with hands β rendering them essentially useless.
His take might surprise some, especially those VCs investing in the sector. But not the multiple robotics-focused VCs and AI scientists who have told TechCrunch in recent months that they donβt expect to see wide adoption of humanoid robots for at least a few years β if not more than a decade.
The issues
Fady Saad, a general partner at robotics-focused VC Cybernetix Ventures and former co-founder of MassRobotics, told TechCrunch that beyond sending humanoids into space in place of human astronauts, he doesnβt see a huge market yet.
βPeople who probably havenβt seen humanoids before, or havenβt kind of been closely following whatβs happening, they are impressed with whatβs happening now in humanoids, but we continue to be a little bit conservative and skeptical about the actual use case and the actual revenues that will be generated,β Saad said.
Saad is also concerned about safety, especially when humans and humanoid robots share the same space. Safety issues could arise from humanoids and humans working closely on a factory floor, or other industrial sites. Saad says those concerns mount when humanoids enter peopleβs homes β a goal many humanoid companies are working toward.
βIf this thing falls on pets or kids, it will hurt them,β Saad said. βThis is just one aspect of a big hurdle that no one is paying attention to, or very few people are paying attention to. The other thing is, how many people are comfortable with having a humanoid in their home sitting there? What if it got hacked? What if it went crazy at night and started breaking things?β
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The timeline for this technology also isnβt clear β a crucial factor for VCs who have fund lifecycles and timelines to return capital to investors.
The timeline
Sanja Fidler, the vice president of AI research at Nvidia, told TechCrunch in August that while itβs hard to pin the development of humanoids to an exact timeline, she compared the current swell of interest to the excitement in the early days of self-driving cars.
βI mean, look at self-driving cars, in 2017 and 2016, I mean it felt tangible, right?β Fidler said at the time. βIt still took them quite a few years to really scale and even now, no one really scaled to the entire world, full autonomy. Itβs hard. Itβs really hard to go and fully delivery on that technology.β
Nvidia chief scientist Bill Dally agreed in an interview with TechCrunch. Dally and Fidlerβs comments are especially notable as Nvidia is also pouring money into developing the infrastructure for humanoid companies to follow.
Seth Winterroth, a partner at Eclipse, said while it can be easy to get excited as each new technological development happens, or the latest demo drops, humanoids are incredibly complicated. He added that it will be a while before they reach their full capabilities.
βItβs difficult to do software releases to six degrees of freedom systems; what weβre talking about with some of these humanoids is 60-plus degrees of freedom systems,β Winterroth said, regarding a robotβs ability to move on a 3D axis. βThen you need to be able to have good unit economics around that solution, such that youβve got strong gross margin, such that you can be building an enduring business. I think weβre pretty early.β
In most cases, humanoid robots arenβt ready for the world yet, either.
Tesla is a great example of the struggles companies are running into. The company announced it was building its humanoid, Optimus, back in 2021. The following year, Tesla said the bot would be introduced in 2023.
That didnβt happen. When the bot was introduced in 2024 at Teslaβs βWe, Robotβ event, it was revealed later that the bots were largely being controlled by humans off scene. The company claims it will start selling the bots in 2026.
Robotics startup Figure, which was valued at $39 billion in a September fundraise, has also drawn skepticism regarding how many of its humanoids the company has actually deployed, a claim the company staunchly defends.
What is working
That doesnβt mean humanoids wonβt have a future market or that the technology is not worth working on.
Brooks himself said he doesnβt doubt that we will have humanoids in the future. But instead of what the market pictures when they hear humanoids, a robot with a human form, he predicts theyβll likely have wheels and other inhuman features and wonβt be coming out for more than a decade.
There are startups working on the dexterity technology Brooks is skeptical humanoids will be able to reach, including Y Combinator-backed Proception and Loomia, which built a kit that can help robotics companies start to incorporate touch into their machines.
There are also numerous humanoid companies that are starting to take orders and gather interest in their robots. K-Scale Labs received more than 100 preorders for its humanoid bot in the first five days, surprising even the founders, CEO Benjamin Bolte told TechCrunch.
Hugging Face has also seen strong demand from developers for its two humanoid bots. The company opened up preorders for its smaller desktop version, the Reachy Mini, in July. The reaction was palpable. Just five days afterΒ opening orders on its Reachy Mini robots, Hugging Face had logged $1 million worth of sales.