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Fauna Robotics Exits Stealth with Sprout, a Soft-Bodied Humanoid for the "Messy Reality" of Shared Spaces

A close-up of the Sprout robot's head, featuring a white rectangular face with two black camera lenses, a blue glowing light strip at the bottom, and two yellow, angled eyebrows on top.
Sprout's expressive head includes an LED array and motorized eyebrows that enable the robot to convey nonverbal cues and support social interaction.

The landscape of humanoid robotics is rapidly shifting away from the "hard" industrial forms of the past toward a new generation of "soft" and approachable machines. Today, New York-based Fauna Robotics officially joined this race, stepping out of stealth to unveil Sprout, a lightweight, interactive humanoid platform designed explicitly for shared human environments.

Shipping today as a "Creator Edition," Sprout is positioned as a developer-ready canvas for researchers and creators who want to explore applications in retail, entertainment, and home services without "fighting the basics" of hardware and low-level control.

Bridging the "Deployment Gap"

Despite significant advances in simulation and learned control, the industry has struggled with a persistent "deployment gap." Most existing humanoids are either proprietary industrial systems inaccessible to independent developers or academic prototypes too fragile and dangerous for routine operation around people. The Unitree G1 has been the only real option for most.

Sprout addresses these limitations through a "safety-first" design philosophy. Standing 1.07 meters (3.5 feet) tall and weighing just 22.7 kg (50 lbs), the robot is intentionally compact to reduce kinetic energy and potential impact forces. Its exterior is composed of soft, foam-like materials and padded panels, minimizing pinch points and making it approachable for direct physical interaction—even by children.

This design choice aligns with recent findings from an Altman Solon consumer report, which noted a clear American preference for "visually and haptically soft" models over the imposing metal frames typical of early prototypes.

A young girl puts a pink party hat on the Sprout robot, which is decorated with colorful stickers of unicorns, rainbows, and space-themed icons.
Standing just 107 cm (40 in) tall, Sprout is designed as an approachable platform for routine operation in shared human environments like homes and schools.

The Move Toward "Lovable" Hardware

While competitors like Sunday Robotics and Tangible Robotics have opted for wheeled bases to prioritize stability in the home, Fauna has remained committed to a bipedal form factor. However, like Cartwheel Robotics and Disney’s recent "Olaf" project, Fauna is betting that emotional connection is as critical as physical utility.

Sprout features an expressive head equipped with motorized eyebrows and a 100-pixel LED array face to convey intent and emotion. "If we want a future where robots live alongside us, we can’t just build machines that are tolerated—we have to build robots that are loved," said Anthony Moschella, VP of Hardware at Fauna.

A close-up of a child's hand pressing into the soft, light-green foam material of one of the Sprout robot's limbs.
Sprout features soft, deformable exterior materials that mitigate risk during close-proximity operation and support safe, direct physical interaction.

Technical Foundation and Developer Stack

Beneath its soft exterior, Sprout is a highly capable research platform. It features 29 degrees of freedom (DoF) and is powered by an NVIDIA Jetson AGX Orin 64GB. Its sensing suite includes a ZED2i stereo camera for depth perception, four Time-of-Flight (ToF) sensors for obstacle avoidance, and a four-microphone array for voice-driven interaction.

Key software highlights of the platform include:

  • Modular AI Architecture: A unified stack that integrates whole-body control, manipulation, and navigation while allowing developers to swap in their own models.
  • Pre-Trained Capabilities: Out-of-the-box support for behaviors like walking, kneeling, crawling, and dancing.
  • VR Teleoperation: An immersive interface—compatible with Meta Quest 3—that allows operators to provide intuitive commands for dexterous tasks and collect data for imitation learning.
  • Compliant Control: Software-level limits on joint torques ensure the robot yields to external forces, reducing the risk of harm during incidental contact.
A man kneels on a wooden floor and lifts the foot of the upright Sprout robot, demonstrating its 22.7 kg (50 lbs) lightweight design.
At 22.7 kg (50 lbs), Sprout’s low mass reduces kinetic energy and potential impact forces, which is a fundamental part of its safety profile around people.

A New Era of Accessibility

The launch of the Creator Edition signals Fauna’s intent to democratize humanoid development. Early customers already include academic institutions like NYU and UC San Diego, as well as industry leaders like Disney and Boston Dynamics.

By manufacturing in the United States and providing a robust SDK, Fauna is positioning Sprout as a "canvas" for the next generation of embodied intelligence. As the industry moves toward the 2026 beta programs announced by rivals like Sunday Robotics, Fauna’s immediate shipping of a bipedal platform could give it a significant head start in the race to define the "social contract" between humans and their robotic companions.


Read more about Sprout on the Fauna Robotics Website.

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