APOCYNTHION

The cerebellum for humanoid robots.

ArenaLabs builds AlphaMotion — a cross-hardware motion foundation model that gives any humanoid full-body motor intelligence out of the box.

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The state of humanoids

Every humanoid today runs without a cerebellum.

The brain layer — VLA models, world models, multimodal planners — has been trained and validated on tabletop arms. Deploy that same brain on a full humanoid with thirty actuated joints and it cannot stand up. The problem is not intelligence. It is movement.

The data desert

Robotics training data trails language pretraining by five orders of magnitude — and computer vision by three.

27K

The largest existing robotics training dataset.

57h

Hours of full-body human motion · zero hours of full-body egocentric.

100K+

Hours of real and augmented egocentric data — ArenaLabs target, largest in robotics.

The transfer tax

Every new humanoid body, every new motion stack, built independently.

There is no pretrained motion backbone that transfers across morphologies the way language models transfer across languages. Every company is reinventing the wheel for every body — the single largest cost bottleneck preventing humanoids from reaching mass deployment.

Unitree G1
Unitree G1
Figure 03
Figure 03
1X Neo
1X Neo
Boston Dynamics Atlas
Atlas
NVIDIA GR00T
NVIDIA GR00T

What we build

One foundation model. One data engine. One platform.

01

Data Engine

Egocentric capture

Smart glasses capture full-body motion in the wild — yoga, golf, tai chi, everyday movement. The raw fuel of the system.

02

AlphaMotion

Motion foundation model

A cross-hardware motion foundation model. Trained on the wild-captured corpus above. Outputs full-body motion that retargets to any humanoid morphology.

03

ArenaLabs Platform

Developer-facing API

Subscription motion API. Small teams ship motion instantly. Hardware partners get custom controllers tuned to their morphology.

The roadmap

Three phases. The motion layer first.

  1. Phase 01

    Q4 2026

    ArenaLabs API

    Motion-as-a-service for humanoid OEMs and integrators. AlphaMotion exposed as a subscription endpoint; cross-hardware motor primitives shipped on day one.

  2. Phase 02

    Q2 2027

    Loco-manipulation Toolkit

    Cross-hardware migration and end-to-end task primitives — retrieval, manipulation, contact-rich interaction. AlphaMotion transfers across humanoid morphologies without per-platform fine-tune. Integrators compose tasks instead of training policies.

  3. Phase 03

    Q4 2027

    ArenaOS

    The kernel layer of physical computing. A locomanipulation runtime that boots on any humanoid morphology — out of the box, no per-platform fine-tune.

Working with us

The motion layer of the humanoid era starts here.