SoftBank and OpenAI Launch AI Joint Venture in Japan

New partnership, SB OAI Japan, will localize enterprise AI solutions for the Japanese market.

SoftBank and OpenAI have formed a 50-50 joint venture, SB OAI Japan, to bring OpenAI's enterprise AI offerings to Japanese businesses. SoftBank itself will be the first customer, deploying 'Crystal intelligence' across its operations.

Mark Ellison

By Mark Ellison

November 9, 2025

4 min read

SoftBank and OpenAI Launch AI Joint Venture in Japan

Key Facts

  • SoftBank and OpenAI launched a 50-50 joint venture in Japan named SB OAI Japan.
  • The joint venture will localize and sell OpenAI's enterprise AI tech to Japanese companies.
  • SoftBank will be the first customer of SB OAI Japan.
  • The primary product is "Crystal intelligence," a packaged enterprise AI solution.
  • SoftBank has already created 2.5 million custom ChatGPT instances for internal use.

Why You Care

Are you wondering how major tech players are making AI work for them, especially in new markets? SoftBank and OpenAI just launched a new joint venture in Japan. This move aims to localize AI solutions for Japanese companies. It shows a growing trend of self-sustaining AI investments. Your business might soon benefit from similar localized AI tools.

What Actually Happened

SoftBank and OpenAI have officially launched a new joint venture in Japan. This partnership is called SB OAI Japan, as mentioned in the release. The new entity will be equally owned by both companies, according to the announcement. Its main goal is to localize and sell OpenAI’s enterprise system to businesses in Japan. SoftBank itself will serve as the joint venture’s first customer, the company reports. This arrangement highlights a circular investment strategy in the AI sector.

SB OAI Japan will offer a product named “Crystal intelligence.” This is defined as a “packaged enterprise AI approach,” as detailed in the blog post. It targets corporate management and operations within Japan. The approach combines OpenAI’s enterprise tools with local support and implementation. This ensures it meets the specific needs of the Japanese market.

Why This Matters to You

This new venture means that AI tools are becoming more accessible. You might be a business leader in Japan looking for efficiency gains. Or perhaps you’re simply curious about AI adoption. “Crystal intelligence” aims to boost productivity and management efficiency. It does this by integrating AI, as SoftBank stated. Imagine your company using custom AI instances to streamline daily tasks. For example, think of an AI assistant that understands local business nuances.

What could this mean for your organization’s future?

This partnership also demonstrates a growing trend in AI investment. Companies are not just buying AI; they are also building and selling it themselves. “Crystal intelligence is designed to help organizations enhance productivity and management efficiency through the adoption of AI tools,” SoftBank said. This approach ensures a continuous flow of creation and revenue.

Key Benefits of SB OAI Japan’s Offerings:

  • Localized AI Solutions: Tailored for the Japanese market.
  • Enhanced Productivity: Through AI tool adoption.
  • Improved Management Efficiency: Streamlining corporate operations.
  • Integrated Support: Combining OpenAI’s tech with local implementation.

The Surprising Finding

Here’s an interesting twist in this AI story. SoftBank, a major investor, is also the first customer of its own joint venture. The conglomerate plans to use the solutions throughout its various businesses, the team revealed. They will validate the effectiveness for product creation and “business transformation.” Then, they will share these insights with other companies. This shows a deep commitment to internal AI adoption. It also creates a feedback loop for product refinement. It challenges the common assumption that investors only provide capital. Instead, they are actively participating in product creation and market validation.

SoftBank has already created 2.5 million custom ChatGPT instances for internal use. What’s more, all its employees are “actively utilizing AI in their daily operations,” the company reports. This extensive internal use provides a real-world testing ground. It ensures the offerings are before reaching external clients. This self-serving model accelerates AI creation and deployment.

What Happens Next

We can expect to see SoftBank’s internal testing of “Crystal intelligence” unfold over the coming months. Insights gained from this internal deployment will likely inform future product iterations. This could lead to broader availability in the Japanese market by late 2025 or early 2026. For example, a manufacturing company in Japan might soon adopt these localized AI tools. This would help them improve supply chains or predict equipment failures.

For readers, consider how your own company could benefit from a similar internal-first AI strategy. Start small, perhaps with custom AI instances for specific departmental needs. This approach minimizes risk and maximizes learning. The industry implications are clear: AI creation is becoming more circular. Investors are becoming users, and users are influencing creation. This creates a environment for rapid AI advancement.

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