Unitree's Quadruped Robots: From Laikago to the B2

01The line that built the company

Unitree's first product, and the one that funded everything that came after, was a robot dog. The Laikago — named after Laika, the Soviet space dog — launched in October 2017 at roughly $20,000–$30,000, a fraction of what comparable research-grade quadrupeds cost at the time, though still well beyond a hobbyist's budget. What followed was six years of steady, generation-by-generation price cuts alongside real capability gains: AlienGo (2019), A1 (2020, under $10,000), Go1 (2021, from $2,700), Go2 (2023, from $1,600), and the heavier-duty B1/B2/B2-W industrial line built for inspection and rescue work rather than research or hobbyist use.

Founder Wang Xingxing has been direct about where that price advantage comes from: developing everything in-house rather than buying components. "Our company actually spent more manpower and money than software on the hardware level such as machinery," he told IEEE Spectrum around Go1's 2021 launch, describing roughly six to seven years of hardware iteration focused on "ultra-low cost, high reliability and high performance."

02Six generations, 2017–2023

Each generation added real capability — AlienGo's backflip, A1's stereo depth cameras, Go1's five-camera "Super Sensory System," Go2's LiDAR and voice interaction — while the entry price kept falling, the reverse of how most hardware categories evolve.

03Consumer/research line vs. the industrial B-series

Unitree splits its quadruped lineup in two: a consumer- and research-oriented Go-series aimed at hobbyists, developers, and universities, and a ruggedized, IP67-rated B-series built for industrial inspection, security patrol, and emergency response, with far higher payload capacity and runtime than the Go-series.

04What's technically distinctive

Go2, Unitree's current flagship consumer model, launched in July 2023 at $1,600 for the base "Air" configuration, with 4D LiDAR for 360-degree obstacle sensing, an integrated large-language-model voice interface, and a top speed that varies meaningfully by tier — 2.5 m/s (Air) up to 5 m/s (Edu), not a single flat figure across the whole line. The B2, launched in November 2023 for the industrial market, trades some of that price for durability: a peak running speed over 6 m/s (which Unitree's own press materials call the fastest of any industrial-grade quadruped on the market), a 120kg standing payload, and over 4 hours of endurance carrying a 20kg load — roughly triple B1's range. A wheeled-leg variant, the B2-W, trades some off-road agility for speed, reportedly reaching around 20km/h on wheels.

05Real-world deployments, not just demos

Unlike many robot-dog viral moments, some Unitree deployments are genuinely operational rather than staged. Romania's mountain rescue service, Salvamont, has equipped Go2 units for search-and-rescue work in terrain that's slow or dangerous for human teams to cover on foot. Chinese utilities have reportedly deployed B2 units for substation and power-grid inspection, reading gauges and capturing thermal imagery autonomously in conditions that previously required manual walkdowns every 90 days.

06Sales and the price gap

Unitree's own IPO prospectus discloses annual quadruped shipments precisely enough to chart: 2,403 units in 2022, then 7,136 in 2024 (the company hasn't disclosed a clean 2023 figure — third-party industry estimates for that year range widely and don't reconcile cleanly with the prospectus's own cumulative total, so we've left it off the chart rather than guess), and roughly 23,000 in 2025 — a reported 222.83% year-on-year increase in units, even as revenue grew a slower 202.6%, reflecting a falling average selling price (down to about ¥30,300, roughly $4,270, per unit). Cumulative shipments across the reporting period exceed 30,000 units.

The clearest way to understand the scale of that business is against Boston Dynamics' Spot, the category's best-known Western competitor. Spot launched in 2020 at $74,500 for its base "Explorer" kit — Boston Dynamics no longer publishes a current list price, directing buyers to contact sales instead. Go2 launched three years later at roughly a 46th of that price. Newsletter SemiAnalysis estimates Unitree held around 70% of global quadruped unit sales by 2023, roughly ten times the shipments of its next-largest competitor. US buyers have felt the price gap directly: the Los Angeles Police Department paid $277,918 for a Boston Dynamics robot in 2023, while the Topeka, Kansas police department bought its first Unitree unit in 2025 for $5,360 and two more the following month at $4,625.50 each — a police lieutenant telling The Wire China plainly, "other companies have a much better overall product we just could not afford them."

07Weaponization concerns follow the price down

A cheap, capable quadruped attracts uses Unitree says it never intended, and the pattern has repeated with the military specifically, not just individual stunt videos. In September 2023, the US Marine Corps live-fire tested a commercially purchased Go1 fitted with an M72 rocket-launcher trainer at Twentynine Palms, California, with the Marine Air Ground Task Force Training Command exploring remote-triggered weapons handling as a way to keep personnel off the direct firing line. In May 2024, Chinese state broadcaster CCTV showed Go2 units equipped with rifles during a joint China-Cambodia military exercise called "Golden Dragon," with a soldier describing the robots' role in urban reconnaissance and target identification.

Unitree's public position hasn't changed since it was first put in this position in 2022: its co-founder said then that all its products are for civilian use and that the company doesn't support military applications, while acknowledging it can't fully control resale through third parties. Whether that distinction holds up when a national military openly demonstrates armed units on state television is a fair question the company hasn't directly addressed.

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