Peter Thiel Backs £1.6bn AI 'Cowgorithm' That Lets Farmers Herd 400,000 Cattle With One Button

Venture firm Founders Fund, backed by billionaire Peter Thiel, entered talks to fund agricultural startup Halter at a valuation exceeding £1.6 billion ($2 billion).

The company, based in Auckland, develops solar-powered collars that allow farmers to track and guide cattle remotely, effectively replacing physical fences with digital boundaries.

Bloomberg reported that Halter had already raised £79 million ($100 million) in mid-2024 at a valuation of about £790 million ($1 billion), signalling early investor confidence. Its latest funding discussions suggest that appetite for agricultural AI may be returning after a difficult period for the sector, which has seen several agtech companies struggle to scale or attract users.

How AI 'Cowgorithm' Works On Farms

At the centre of the buzz is a deceptively simple idea. Each cow wears a smart collar that connects to a mobile app, giving farmers real-time information about location, health and behaviour.

The collars use sound and vibration cues to guide animals, allowing a farmer to draw a virtual boundary on a screen instead of building fences.

The concept, described informally online as a 'cowgorithm', has gained traction partly because of its practicality. Farmers can move entire herds with a single command, shifting them to fresh pasture or towards milking areas without manual labour. The collars are solar-powered, meaning they can operate continuously in outdoor conditions.

In this case, Halter is not just tracking cows but actively managing them. Founder Craig Piggott previously said the goal was to make farming 'more sustainable and productive using technology', a claim that resonates in an industry under pressure to reduce costs while maintaining output.

The collars are already being worn by 'hundreds of thousands,' but the exact number often cited in social posts (600,000) is slightly higher than the most reliable public estimate. According to Halter's own reported figures, by mid‑2025 the startup had deployed its smart collars on about 400,000 animals across farms in New Zealand, Australia and the United States.

That doesn't mean every single one of those animals is currently active or that they're everywhere. Technology adoption can fluctuate as collars are rotated, farms change systems or new herds are added.

For nowm Halter's collars are in wide use in commercial farming environments, with several hundred thousand cattle fitted already.

But it's worth noting that the funding deal itself has not been finalised, and both Halter and Founders Fund have declined to comment publicly.

Peter Thiel's Backing Stirs Uneasiness

Reaction has been sharply divided. Some see the system as a breakthrough in efficiency, while others are less convinced by both the economics and implications of it all.

A few critics focused on the practical limits. One questioned whether the system could fully replace traditional barriers, writing: 'I'm sure the fence description is wrong. Not physics cally possible.' Another raised concerns about reliability, suggesting: 'bro imagine wifi goes down and the cows just wander into traffic'.

Cost is another sticking point.

While the service is reportedly priced per animal each month, some observers argue the expense could add up quickly. One comment put it bluntly: 'Cool idea. But the cost is not insignificant. I suppose it works for dairy, but $5/monthly would add maybe 100 dollars per head to raise a beef calf to slaughter weight. Cost needs to reduce by a lot.'

Others are thinking less about finances and more about the human side of farming. One reaction captured that unease: 'Kind of sad to replace animal husbandry with tech, especially in cows, who enjoy interacting with humans.' There is also scepticism about how the system actually works in practice, with another user noting: 'I like how it doesn't mention the "incentive" portion of the collar that gets the cows to move.'

Yet not all responses were critical. Some pointed to adoption rates as evidence the product is solving a real problem.

Even the valuation itself has prompted curiosity. One post joked: 'Valuation is so high b/c they're working on a version for humans... Ok joking aside, great business. Not everything is a conspiracy. Maybe.'

Halter's smart collars are already being used on hundreds of thousands of cattle in several countries, and the company's move into the US shows it's aiming for a much bigger market. How well it can justify its billion-dollar valuation will depend on whether farmers actually adopt the technology over time.

New tools that promise to make work easier often meet some hesitation, but early signs suggest many farmers are willing to give it a try—especially when it allows them to manage an entire herd with just a tap on a phone.