On March 11, 2026, Xie Saining, the leading figure in the global AI vision field and the author of DiT (Diffusion Transformers), along with his team, officially launched the world's first multi-person video world model - Solaris. This breakthrough not only verifies the collaborative perception capabilities of multiple players in a virtual world but also marks a leap from "single-player single-view" to "multi-player interactive world" in video generation models.

Technical Foundation: Introduction of Multi-Player Self-Attention Layers, Greatly Improved Building Consistency

Solaris's core technical architecture is based on the real-time long-sequence interactive generation world model Matrix-Game2.0, which was open-sourced by Kunlun Tian Gong in August 2025.

Compared to the previous only multi-player solution, Multiverse, Solaris introduced an innovative "multi-player self-attention layer," enabling real-time information exchange between different players. In the test scenario of "Minecraft," the model performed excellently in handling complex challenges such as building consistency and visual alignment, ensuring that the visuals do not collapse when multiple players interact in the same space.

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Capital Frenzy: AMI Company Raised $1 Billion, Yann LeCun Heads the Headquarters in Paris

With the launch of Solaris, Xie Saining's newly established AI startup company AMI also revealed its mysterious veil. The company was officially founded in January 2026 by Yann LeCun, a Turing Award winner and former Chief AI Scientist at Meta, and is headquartered in Paris, France.

According to the information, AMI has completed a seed round funding of up to 1.03 billion dollars, and its valuation before the funding has soared to 3.5 billion dollars. Xie Saining serves as co-founder and Chief Scientific Officer (CSO) of the company, responsible for the research and development direction of core technologies.

Open Source Ecosystem: Help Global Developers Build Multi-Person Video Scenes

Based on the open-source solution of Matrix-Game2.0, the release of Solaris provides new possibilities for game development, virtual reality, and embodied intelligence training. Currently, related resources of Solaris are available for developers to download, and it is expected to drive an interactive transformation of video generation technology from "watching videos" to "performing videos."