California crashes robot fight club

PLUS: Atlas gets a four-fingered upgrade

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Jennifer Mossalgue, Rowan Cheung, Shubham Sharma & Zach Mink
October 05, 2026

Good morning, robotics enthusiasts. A San Francisco startup put a YouTuber in a cage with a 6-ft. humanoid — California told it to stop, and the founder couldn’t be happier about it.

Also: Atlas loses its pinky, and FieldAI’s one-brain-for-every-robot pitch reportedly hits $10B.

In today’s robotics rundown:

  • California shuts down REK’s human-robot fights

  • Boston Dynamics drops Atlas’s pinky

  • FieldAI nears $10B for robot brains

  • Exoskeletons are having their moment

LATEST DEVELOPMENTS

REK

Image source: X / @frankie_lapenna

The Rundown: California’s combat-sports regulator just ordered San Francisco startup Robot Entertainment Kombat (REK) to stop putting humans in a cage with humanoids, and the founder posted the cease-and-desist letter online as a win.

The details:

  • REK staged an event in mid-Sept. putting content creator Frankie LaPenna in a cage against a reported 6 ft. EngineAI T800, rebranded as “Rekbot.”

  • Behind the spectacle was a human operator controlling the robot, with LaPenna supplying theatrical reactions to the blows.

  • The California State Athletic Commission's letter bars REK from holding or promoting any boxing or MMA event involving a human without approval.

  • REK founder Cix Liv used the letter for social media buzz, captioning it “We made it, boys.” REK’s robot-vs.-robot events are not covered by the order.

Why it matters: Humanoid entertainment is running into ordinary regulation well before the robots can fight on their own, since REK’s T800 still needed a human pilot in a VR headset. For startups turning robots into spectator events, getting permission to stage the show is now as much a part of the job as getting the hardware to perform.

BOSTON DYNAMICS

Image source: Boston Dynamics

The Rundown: Boston Dynamics gave Atlas new hands with four fingers, nearly twice as many joints as before, and enough dexterity to hold a power tool and pull its trigger in the same grip.

The details:

  • Each hand now has 13 degrees of freedom, up from seven, with a more dexterous thumb for manipulating objects.

  • Dense pressure sensors cover the fingertips and palm. They sit on top of backdrivable joints, which reportedly let Atlas sense contact force via its motors.

  • Atlas can also now reorient objects in-hand, recover a slipping grasp, and run triggered tools like drills, grinders, nail guns and welding torches.

  • A pinky would have meant three more actuators; the team settled the question after the CTO had engineers tape two fingers together for a day.

Why it matters: Most humanoid hands copy human anatomy, but Boston Dynamics built Atlas’s to match its simulator, so the robot can learn to handle objects via reinforcement learning. The targets are tool use, cable handling, and bin picking — tasks the company says still make up most manual factory work.

FIELDAI

Image source: FieldAI

The Rundown: Irvine, California-based startup FieldAI signed a term sheet for a $700M round at a $10B valuation, 5x its 2025 mark, for software that runs robots it doesn’t build, Business Insider reports.

The details:

  • The startup, founded in 2023, sells what it calls a “universal general-purpose brain” for humanoids, robot dogs, drones, and industrial rovers.

  • A March partnership with Boston Dynamics pairs its Spot robot with FieldAI’s models to navigate evolving construction sites and document building progress.

  • Since June, it has added at least $35M in revenue and contracts, for a total above $135M across 30+ customers in construction, data centers, and defense.

  • The mark puts FieldAI near rivals Physical Intelligence (~$11B) and Skild AI (~$14B), which raised $1.4B in January.

Why it matters: If the round closes, three U.S. robot-software startups would carry ~$35B in combined valuation. FieldAI’s test bed is commercial: 30+ customers and $135M in revenue and signed contracts, including construction sites where materials move, paths get blocked, and the building goes up around the robot.

EXOSKELETONS

Image source: IKEA

The Rundown: The robot revolution is learning to fit around a human body. As Ars Technica reports, exoskeletons are moving into warehouses and mountain-rescue trials, promising to make lifting, climbing, and long days on your feet less punishing.

The details:

  • Seattle Mountain Rescue is testing Hypershell's powered hip exoskeletons to see if rescuers can haul gear with less fatigue and reach victims faster.

  • IKEA has used SuitX exoskeletons in its warehouses for years. Ford, Boeing, and Mazda Toyota now put them on some assembly lines.

  • Some estimates put the sector at $500M today, growing 2–3x by the mid-2030s. Batteries are still the main limit because they add weight and need recharging.

  • Ukraine’s military disclosed in early 2026 that its soldiers had been using Hypershell rigs to haul artillery shells.

Why it matters: The idea goes back to an 1890 patent (and plenty of Hollywood movies), but motors, sensors, and control systems only became cheap enough to be practical in the past decade. Now, humanoid robot development is speeding up work on the same actuators and batteries that exoskeletons need.

QUICK HITS

Tesla extended its Austin Robotaxi service from 10 p.m. to 11 p.m., but Musk said detecting pets against dark pavement is a challenge to expanding late-night operations.

Silicon Valley investors are touring China’s robot factories to understand its lead and assess whether their U.S. robotics startups can compete, Business Insider reports.

Amazon and Georgia Tech launched a robotics and aerospace research hub, with Georgia Tech adding Fauna Robotics’ Sprout to study human–robot interaction.

Panasonic aims to produce humanoids for factories and warehouses by 2029, using its battery-safety expertise as a competitive advantage, Nikkei Asia reports.

Germany’s RobCo, maker of industrial robotic arms, joined the billion-dollar club with over 1K robots sold and a $40M share sale, The Wall Street Journal reports.

Clone Robotics demoed Torso 3’s remote-controlled hand and set a November launch for Torso 4, a redesigned platform built for stationary, two-arm work.

Wandercraft closed its acquisition of Ekso Bionics, combining two exoskeleton makers whose Atalante X and EksoNR systems already sit in 700+ rehab centers.

China’s Galbot priced its ET1 humanoid at 79K yuan ($11,800), with the Pro version at 139K yuan ($20,700), and the Flagship at 179K yuan ($26,700).

Northrop Grumman said its YFQ-48A Talon Blue completed its first fully autonomous flight, performing takeoff, maneuvers, and landing without remote pilot control.

RoboParty unveiled RP1, a humanoid that recovers its balance after pushes and kicks, with open-source hardware and software designed to let researchers modify it.

SoTa’s tactile skins cost under $10 each in materials and help robots learn from human touch demos, roughly doubling average success from 22.8% to 45.9%.

That's it for today!

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See you soon,

Rowan, Zach, Shubham, Jennifer, and Nate — The Rundown’s editorial team