SoftBank, NEC, Sony, and Honda set up Japan's "Physical AI" foundation-model joint venture
SoftBank Group, NEC, Sony Group, and Honda Motor announced on April 12 that they have jointly set up a new company to develop Japan-built foundation models for "Physical AI" — AI systems intended to control physical hardware including robots, vehicles, and factory equipment. According to The Japan Times, the Asahi Shimbun, and the Yomiuri Shimbun, each of the four founding shareholders holds a stake exceeding 10% in the venture, with Nippon Steel, Kobe Steel, MUFG Bank, Sumitomo Mitsui Banking Corporation, and Mizuho Bank also participating as financial partners.
A SoftBank executive has been appointed as the new company's president. SoftBank and NEC will lead the development of the foundation models themselves, with Preferred Networks Inc. participating as a technical and engineering partner. Honda and Sony will focus on deploying the resulting models into their own domains — autonomous driving and robotics for Honda; robotics, gaming, and consumer hardware for Sony.
The technical target disclosed at announcement is a model on the order of one trillion parameters, with a multi-year roadmap focused not on chat or general assistants but on closed-loop control, perception, and planning for physical machines. The Yomiuri Shimbun reported that the venture intends to keep the resulting models domestically owned, with weights and training data hosted on Japanese infrastructure rather than dependent on foreign cloud providers.
On financing, the new company plans to apply for a New Energy and Industrial Technology Development Organization (NEDO) program for which the Japanese government has earmarked roughly ¥1 trillion (about $6.3 billion to $6.7 billion) over five years starting fiscal 2026. The Japan Times noted that the JV is positioning itself within the government's broader policy framing of "Japan as a third pole" between the U.S. and Chinese AI ecosystems.
No specific direct quote from a single CEO accompanied the announcement; the consortium's stated goal, repeatedly attributed to a SoftBank spokesperson in Reuters, Nikkei, and Asahi reporting, is to "build a domestic, high-performance AI foundation that reduces dependence on foreign cloud providers" and to address what the Japanese government has called the "digital deficit" — the country's structural imbalance between domestic spend on foreign cloud and AI services and inbound technology revenue.
For Enpo Sekai, this is the most consequential Japan AI policy event of 2026 to date. Two things stand out. First, the JV's framing — Physical AI — explicitly steps away from competing with U.S. labs at the chat-LLM frontier and instead bets on Japan's existing strengths in robotics, automotive, electronics, and manufacturing. We think this is the correct strategic shape; it acknowledges where the country's industrial assets actually are. Second, the participation of Preferred Networks alongside SoftBank and NEC means the venture is not a purely corporate alliance but inherits substantive technical lineage from PFN's prior work on robotics and large-scale ML.
As a small Tokyo-based studio, the venture does not change anything we will ship next quarter. But the medium-term implication is concrete: if the JV's foundation models become a primary domestic stack for embodied AI, then companies in Japan working on adjacent layers — characters, voice, narrative, persona — will increasingly need to integrate with that stack on top of the U.S. frontier APIs. We will be watching for two things over the next twelve months: (1) whether the venture publishes any technical artifact (models, evaluations, papers) that lets external developers assess actual capability beyond the policy narrative; (2) whether the resulting platform exposes APIs, weights, or licensing terms compatible with use by smaller domestic studios — or stays a closed industrial supply chain.
