Carbon Robotics LaserWeeder: How It Works, Specs, Price

What Is Carbon Robotics?

Carbon Robotics is an agricultural robotics company based in Seattle, with manufacturing operations in Eastern Washington. It was founded in 2018 by Paul Mikesell, a University of Washington computer science graduate whose prior work included founding the storage company Isilon Systems and building infrastructure at Uber, before turning that neural-network and computer-vision background toward farming.

The company's flagship product is the LaserWeeder, a tractor-pulled implement that identifies individual weeds among row crops and destroys them with lasers rather than herbicide. Carbon Robotics has since expanded the line into the LaserWeeder G2 and describes itself as building "physical AI for agriculture," applying the same perception stack to other field tasks over time.

The LaserWeeder is one of the named commercial machines in our agricultural robots guide, which groups farm robots by task rather than brand, and in the weed control robots guide, which compares laser, mechanical, and spot-spray weeding methods.

How The LaserWeeder Actually Works

The LaserWeeder is pulled behind a standard tractor across a field. As it moves, an array of high-resolution cameras captures the crop row in real time and feeds the images to onboard GPUs running deep-learning models trained to tell the planted crop apart from weeds, even at close spacing and at driving speeds up to about 6 mph.

Once a weed is identified, the system aims a laser at the plant's growing point, or meristem, and applies a short burst of thermal energy. Carbon Robotics says this destroys the meristem so the weed cannot regrow, and the dead plant is left in the field as organic biomass within about 72 hours — with no chemicals sprayed and no soil disturbed by tillage.

That combination is what separates the LaserWeeder from other precision weeding approaches: spot-spray systems like John Deere's See & Spray still apply herbicide, and mechanical weeders cut or till the soil near the crop row, which risks root damage. The LaserWeeder's pitch is zero-chemical, zero-tillage weed elimination at row-crop scale.

LaserWeeder G2 Models And Specs

The current generation, the LaserWeeder G2, ships in five widths so growers can match the machine to their operation, from smaller diversified farms up to large-scale row-crop acreage. Carbon Robotics reports each laser module carries two 240-watt lasers, three cameras for sub-millimeter weed detection, LED lighting for night operation, and two NVIDIA GPUs processing against more than 100 trained crop models.

Independent reporting on the earlier LaserWeeder generation put throughput at roughly 4.7 million images processed per hour and up to 5,000 weeds killed per minute across the full machine width, with Carbon Robotics saying the G2 line is faster and lighter than the model it replaced.

LaserWeeder Price And ROI

Carbon Robotics does not publish a single retail price, and the LaserWeeder G2 is sold through direct sales conversations rather than an online checkout. Industry reporting puts new G2 units in the roughly $1.4 million to $1.7 million-plus range depending on width and configuration — the G2 600 has been reported near $1.4 million, with the largest G2 1800 above $1.7 million — plus an annual support and software fee reported in the tens of thousands of dollars. Used units have appeared at auction for a small fraction of that, so any exact figure should be verified directly with Carbon Robotics before budgeting.

The company's own payback claim is a 1 to 3 year break-even on equipment built to last 7 to 10 years, driven mainly by cutting herbicide spend rather than labor. Carbon Robotics also reports up to an 80 percent reduction in weed-control cost and a 5 to 50 percent yield increase versus chemical weeding, figures it says are validated by grower and third-party trials.

Before treating any of those figures as guaranteed on your own farm, run the same discipline covered in the robotics ROI guide: measure your current herbicide and pass cost against a real quote, not a marketing average.

Paul Mikesell, Funding, And Growth

Paul Mikesell founded Carbon Robotics in 2018 after building the storage-systems company Isilon Systems and working on infrastructure teams at Uber, applying that computer-vision and distributed-systems background to a farm problem after prototyping a laser weeder in his own backyard.

Carbon Robotics has raised roughly $157 million across multiple rounds, most recently a $70 million Series D in October 2024 led by BOND with participation from NVIDIA's venture arm NVentures, Anthos Capital, and others, pushing its reported valuation to around $370 million. The company has said the fleet has eliminated more than 10 billion weeds globally since 2022 across more than 100 crop types in North America, Europe, and Australia, and has reported crossing $100 million in annual revenue.

Carbon Robotics sits alongside other AI-driven robotics companies we track outside the humanoid space, such as Field AI's physics-first navigation models — both apply deep learning to unstructured, real-world environments rather than a factory floor.

How The LaserWeeder Compares

Within row-crop weeding, the LaserWeeder's main commercial rivals use different mechanisms: John Deere's See & Spray and Ecorobotix's ARA both spot-spray herbicide only onto detected weeds rather than eliminating chemicals entirely, while Naio Technologies builds smaller autonomous mechanical weeders for narrower rows. The practical choice among them usually comes down to whether a farm wants to cut chemical volume (spot-spray) or eliminate it (laser), and how the equipment cost compares to the acreage it needs to cover in season.

See the full field-by-field comparison, including harvesting and other farm-task robots, in the agricultural robots guide, and the discrimination-accuracy framework for judging any weeding robot in the weed control robots guide.