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Company profile · Updated

Moonlake AI
world models for physical AI.

Moonlake AI is a San Francisco based frontier AI lab building world models and simulation infrastructure for physical and embodied AI. Founded in 2025 by Fan-Yun Sun and Sharon Lee, the company develops technology that converts an image, a video, or a plain-text description into a physically accurate, simulation-ready model of the real world, complete with joints, ranges of motion, and drive limits, that exports directly into USD, NVIDIA Isaac Sim, and MuJoCo. Moonlake raised $28 million in seed funding led by AIX Ventures, Threshold, and NVIDIA Ventures, and was named to the CB Insights AI 100 list of the most promising artificial intelligence startups of 2026.

$28M
seed funding
2025
founded
3
export targets

Moonlake AI at a glance

Founded
2025
Headquarters
San Francisco, California, USA
Founders
Fan-Yun Sun (Cofounder & CEO), Sharon Lee (Cofounder)
Category
World models, simulation infrastructure, physical AI
Funding
$28M seed (October 2025)
Led by
AIX Ventures, Threshold, NVIDIA Ventures
Flagship product
Real-to-Sim API
Exports to
USD, NVIDIA Isaac Sim, MuJoCo
The product

What Moonlake AI does

Robots, autonomous systems, and embodied AI agents cannot learn safely or affordably in the real world alone. Every hour of physical testing is expensive, slow, and risky. Simulation solves that, but building a simulation environment that actually behaves like reality has traditionally required teams of 3D artists, physics engineers, and months of manual work per scene.

Moonlake collapses that pipeline into an API call. The company’s World Modeling Stack takes unstructured input, a product photo, a factory walkthrough video, or a written description, and outputs a physics-ready digital asset. Not a decorative mesh, but a functioning object: a drawer that slides within its real travel range, a conveyor that moves at plausible speed, an articulated arm with correct joint limits. The result drops straight into an existing simulation pipeline with no cleanup pass.

The core shift is from 3D asset generation to world generation. Most generative 3D tools produce something that looks right. Moonlake produces something that behaves right.

The Real-to-Sim API

Moonlake’s Real-to-Sim API is the company’s primary enterprise product. Because physical properties are embedded at generation time rather than annotated afterward, assets are usable the moment they land in the target engine. Teams stop maintaining a separate “make the asset actually work” step in their pipeline.

Inputs
Text prompts, reference images, video, or a combination
Outputs
Sim-ready 3D assets with baked-in joints, articulation ranges, and drive limits
Exports
USD, NVIDIA Isaac Sim, MuJoCo
Access
REST endpoint, standard bearer-token auth

Common workflows

  • Reconstructing a real warehouse, lab, or production floor as a navigable digital twin.
  • Generating large asset libraries for domain randomization during robot policy training.
  • Building evaluation environments to stress-test embodied agents before field deployment.
  • Producing physically grounded environments for film, animation, and interactive media.

Who Moonlake AI is built for

Robotics companies

Teams training manipulation and navigation policies that need thousands of varied, physically valid environments rather than a handful of hand-built ones.

Autonomous and physical AI teams

Groups that need to validate behavior against edge cases too rare, too dangerous, or too expensive to stage in the real world.

Industrial and manufacturing operators

Operators building digital twins of facilities from existing photo and video capture, without commissioning a CAD reconstruction project.

Research labs

Labs that need reproducible, shareable simulation environments to benchmark embodied reasoning and reinforcement learning agents.

Studios and creative teams

Teams producing 3D environments where physical plausibility matters to the final result.

The team behind Moonlake AI

Moonlake was founded by researchers out of Stanford AI Lab and NVIDIA.

  • Fan-Yun SunCofounder & CEO

    Stanford AI PhD focused on generative simulation, and previously led 3D generation research projects at NVIDIA.

  • Sharon LeeCofounder

    Stanford AI PhD, Knight-Hennessy Scholar and Siebel Scholar, with research in robot simulation and diffusion models.

  • Yitong DengChief Scientist

    Stanford AI PhD and SIGGRAPH best-paper recipient who led physics simulation research at Epic Games and Netflix.

  • Christian LaforteResearcher

    Former CTO of Stability AI and a two-time startup exit, who led world model projects at NVIDIA and served as a Distinguished Fellow at AMD working on neural rendering.

  • Chris ManningDistinguished MTS

    Former Stanford professor with over 300,000 citations in code generation and embodied reasoning.

The broader team draws from DeepMind, NVIDIA, Tesla, Meta, Waymo, AWS, Anthropic, Autodesk, Stability AI, Epic Games, Stanford, and MIT, and includes best-paper award winners, ACM ICPC medalists, and Olympiad medalists.

Funding and backers

Moonlake AI emerged from stealth in October 2025 with a $28 million seed round led by AIX Ventures, Threshold (formerly DFJ), and NVIDIA Ventures.

Angel and strategic investors include Ian Goodfellow (inventor of GANs, DeepMind), Jeff Dean (Google/Gemini), Naval Ravikant (AngelList), Steve Chen (YouTube co-founder), Guillermo Rauch (Vercel), and Emery Wells (Frame.io), alongside executives from Hugging Face, DeepMind, Stability AI, and OpenAI.

The company was named to the CB Insights AI 100, the annual list of the world’s most promising artificial intelligence startups, in 2026.

The thesis

Why it matters

The bottleneck in physical AI is no longer model architecture, it is data and environments. Language models had the internet to learn from. Robots do not. There is no equivalent corpus of physically grounded, interactive experience sitting on a server somewhere waiting to be scraped.

Moonlake’s position is that this corpus has to be generated, and that generating it requires world models capable of producing environments that are not merely plausible-looking but physically correct. Every simulated asset with accurate articulation is a piece of training signal that did not exist before.

That is the wager: whoever makes simulation environments cheap, fast, and physically faithful unlocks the next order of magnitude in embodied AI capability.

Frequently asked questions

What is Moonlake AI?

Moonlake AI is a San Francisco based frontier AI lab that builds world models and simulation infrastructure for physical and embodied AI. Its technology converts images, video, or text descriptions into physically accurate, simulation-ready 3D environments for robotics training, digital twins, and AI agent evaluation.

Who founded Moonlake AI?

Moonlake AI was founded in 2025 by Fan-Yun Sun, who serves as Cofounder and CEO, and Sharon Lee, Cofounder. Both hold Stanford AI PhDs, with backgrounds in generative simulation, 3D generation research at NVIDIA, and robot simulation and diffusion models.

Where is Moonlake AI located?

Moonlake AI is headquartered in San Francisco, California.

How much funding has Moonlake AI raised?

Moonlake AI has raised $28 million in seed funding, announced in October 2025. The round was led by AIX Ventures, Threshold, and NVIDIA Ventures, with angel participation from Ian Goodfellow, Jeff Dean, Naval Ravikant, Steve Chen, and Guillermo Rauch, among others.

What does Moonlake AI's Real-to-Sim API do?

The Real-to-Sim API accepts text, image, or video input and returns physics-ready 3D assets with joints, articulation ranges, and drive limits already defined. Assets export directly to USD, NVIDIA Isaac Sim, and MuJoCo without additional rigging or cleanup.

How is Moonlake AI different from other 3D generation tools?

Most generative 3D tools produce static, visually convincing meshes. Moonlake AI produces functional simulation environments where objects have correct physical properties and behave accurately under simulation, making the output directly usable for robot training and physical AI evaluation rather than only for visual rendering.

What simulation engines does Moonlake AI support?

Moonlake AI assets export to Universal Scene Description (USD), NVIDIA Isaac Sim, and MuJoCo.

Who uses Moonlake AI?

Robotics companies, embodied AI and autonomous systems teams, industrial operators building digital twins, academic research labs, and studios producing physically grounded 3D environments.

About this profile: OpenCurious compiles independent company profiles for researchers, founders, operators, and the simply curious. OpenCurious is not affiliated with, endorsed by, or sponsored by Moonlake AI. Details are drawn from publicly available information as of , including the company’s own site at moonlakeai.com and launch press coverage; funding figures and team details change frequently. To suggest a correction, email hello@opencurious.com.