robotindex Fauna Sprout
A kid-sized, soft-exteriored humanoid research platform from Fauna Robotics, designed for safe, approachable operation around people in homes, schools, and offices. Fauna was acquired by Amazon in March 2026, shortly after Sprout emerged from stealth.
Manufacturer page — faunarobotics.com →
Image: Fauna Robotics (manufacturer render)
Specs
Battery
~3.5 hrsswappable pack
Weight
~50–59 lbreported inconsistently across sources
Height
~3.5 ft~107 cm / 42 in
Compute
NVIDIA Jetson AGX Orinsingle-source figure
Status
Acquired by AmazonMarch 2026
DOF
29single-source figure
Audio
4-mic array+ integrated speakers
Expression
Articulated neck & gazemotorized eyebrows, LED array
Reference Price
"Creator Edition" units priced around $50,000, shipping to select R&D partners (including NYU and UCSD) since early 2026. Fauna has floated a future target price around $10,000 once produced at scale, with no confirmed timeline — Sprout has never been sold at general consumer retail, and its future under Amazon's ownership is unannounced.
Sensors & Hardware
Sprout's design prioritizes safety: a soft exterior with no exposed pinch points, back-drivable/compliant motors, and an approachable, non-industrial face. It has a 4-microphone array with integrated speakers, an articulated neck, motorized eyebrows, and an LED array for expression. Camera count/resolution are unpublished, and Fauna hasn't disclosed gripper dexterity specs; it ships with grippers, not fully dexterous hands.
Insights
The product photo used on this page carries a third-party aggregator's watermark in the original file, but it is actually a manufacturer render from Fauna Robotics, not that aggregator's own photography. Reported weight for Sprout also varies by source (50 lb vs. 59 lb).
Firmware & Community
Closed platform
Fauna Sprout has not released a public SDK, firmware repo, or developer API. Not currently listed in Builds & Mods.
Specs sourced from Fauna Robotics' own site (faunarobotics.com), The Robot Report's introduction of Sprout, Automate.org (A3), TechCrunch, and CNBC's coverage of the Amazon acquisition, as of September 2026. Weight (50 vs. 59 lb) and the exact seed-funding total ($30M vs. an earlier $16.6M figure) are reported inconsistently across sources. DOF, battery life, and onboard compute come from a single source (The Robot Report) and are not independently corroborated. The product photo used here carries a third-party aggregator watermark in the original file; it is a manufacturer render, not an aggregator's own photography. robotindex does not sell this product.