A Chinese humanoid startup flips 'distillation' claim on OpenAI as it releases a new robotics model
Chinese humanoid robotics startup JoyIn has accused OpenAI of 'direct distillation' of its AI model framework and website design, according to a public letter from JoyIn CEO Guo Renjie.
Intelligence analysis by Gemini 2.5 Flash

JoyIn's CEO, Guo Renjie, published a letter alleging that OpenAI's recently launched GPT-6 Astra model and its associated webpage share significant technical and design similarities with JoyIn's Aether model, which was presented publicly weeks prior. This claim reverses previous accusations made by U.S. companies against Chinese firms regarding AI model distillation.
Imagine you're building a super-smart robot, and you show off some of your cool ideas and how your robot looks. Then, a little while later, another big company shows off their robot, and it has very similar ideas and even looks a bit like yours! The first company is now saying, "Hey, you copied us!" This is a big deal because everyone wants to invent new things, and it's not fair if someone just takes your ideas without asking.
Analysis
The accusation by JoyIn's CEO, Guo Renjie, marks a significant turn in the ongoing debate surrounding intellectual property and AI development. Historically, U.S. companies like Anthropic have frequently accused Chinese firms of 'distillation' – essentially, unauthorized replication or learning from their advanced AI models. JoyIn's claim, however, flips this narrative, suggesting that a major U.S. player, OpenAI, may have engaged in similar practices.
Guo Renjie
Guo Renjie, the CEO of Suzhou-based JoyIn, publicly voiced his concerns in a letter to OpenAI, which he shared on Thursday. He explicitly stated, "People often say major tech companies have intelligence networks monitoring the whole internet, this time I believe it, this is a direct distillation of us without any modifications." This strong assertion underscores the perceived directness of the alleged copying, moving beyond mere inspiration to a claim of direct appropriation of technical concepts and design elements. Guo's statement suggests a belief that OpenAI's actions were not coincidental but rather a deliberate act of leveraging JoyIn's public presentations.
Guo highlighted specific technical similarities, including the use of "recursive self-improvement" and AI optimization of computing power, concepts he claims were part of JoyIn's "extraterrestrial visitor" AI model framework presented in Silicon Valley weeks before OpenAI's Chief Scientist published "An Alien Mind." Furthermore, he pointed to the outer space-inspired design of OpenAI's GPT-6 Astra web page, noting its resemblance to JoyIn's Aether model website, which he claims was released two months prior. These detailed accusations suggest a pattern of alleged imitation across both the underlying technology and its public presentation, leading JoyIn to initiate legal proceedings.
Aether Model
JoyIn's Aether model is central to this controversy, with Guo Renjie asserting its prior public release and unique capabilities. The model, developed under the leadership of Zhu Mingxuan, who previously worked on humanoid models at U.S. company Figure, focuses on a perceptive rather than text-based approach to robotic control. This design choice is claimed to enable humanoids to achieve a 90% success rate on tasks on the first attempt, a significant benchmark in robotics. Zhu Mingxuan also stated that Aether reduced training time by two-thirds, indicating a potentially efficient and advanced system.
The company's decision to open-source parts of the model, such as those related to touch, while retaining control over energy use components, reflects a strategic approach to collaboration and proprietary protection. This selective open-sourcing could be seen as an effort to contribute to the broader AI community while safeguarding core competitive advantages. The Aether model's capabilities and its development timeline are crucial to substantiating JoyIn's claims against OpenAI, as the timing of its public presentation relative to OpenAI's releases forms the basis of the alleged distillation.
Y Combinator
The broader context of AI development and intellectual property is further complicated by comments from industry figures like Garry Tan, CEO of Y Combinator. Tan's stance, stating he would "do nothing" about distillation and pointing out that U.S. companies have trained their AI models on copyrighted data, introduces a layer of complexity to the ethical and legal landscape. His remarks suggest a prevailing view within some parts of the tech industry that the lines around intellectual property in AI are already blurred, with many foundational models potentially built on data that raises its own copyright questions.
This perspective could influence how seriously claims of distillation are taken, particularly when they involve cross-border accusations. If leading figures acknowledge that AI training often involves data with ambiguous copyright status, it might create a precedent that makes it harder to prosecute or even define 'distillation' clearly. The ongoing tech race between U.S. and Chinese companies, coupled with these complex IP issues, underscores the need for clearer international guidelines and legal frameworks to govern AI development and protect innovation.
Key points
- Chinese startup JoyIn's CEO, Guo Renjie, accused OpenAI of 'direct distillation' of its AI model framework and website design.
- Guo claimed similarities in core technical approaches like 'recursive self-improvement' and AI-optimized computing power.
- JoyIn's Aether model, led by Zhu Mingxuan, claims a 90% task success rate for humanoids and reduced training time by two-thirds.
- The startup has initiated the process of filing a lawsuit against OpenAI.
- The accusation reverses a common trend where U.S. companies have flagged Chinese firms for unauthorized model distillation.
This public accusation could lead to increased scrutiny on intellectual property practices in the AI industry, potentially fostering greater transparency and ethical development standards globally. It might also encourage more robust legal frameworks to protect innovators, ensuring fair competition and stimulating genuine breakthroughs.
The lawsuit could result in prolonged legal battles, diverting resources from innovation and potentially slowing down the pace of AI and robotics development. It also risks escalating trade tensions and distrust between U.S. and Chinese tech companies, hindering international collaboration on critical AI advancements.



