SoftBank is doubling down on artificial intelligence, and the scale of the financing behind that strategy is becoming almost as remarkable as the AI companies themselves.

Apollo Global Management is reportedly in discussions with SoftBank Group about increasing a loan tied to the Japanese conglomerate's Vision Fund 2 to as much as $9 billion, up from the existing $5.4 billion facility. The financing would be backed by assets held within Vision Fund 2, according to people familiar with the discussions cited by Bloomberg. The size and terms have not been finalized.

The potential increase is significant because SoftBank is already one of the world's most aggressive investors in artificial intelligence.

At the center of that strategy is OpenAI.

SoftBank has committed approximately $64.6 billion to OpenAI, making its exposure to the ChatGPT developer one of the largest corporate bets in the AI industry. The Japanese technology conglomerate has also been using its OpenAI investment as collateral for financing, including a roughly $10 billion loan raised in August from lenders that included Apollo.

The latest discussions therefore reveal something important about the current AI boom.

It is not only being financed by technology companies and venture capital.

It is increasingly being financed through sophisticated credit markets.

And as the sums grow, investors are beginning to pay closer attention to the financial structures behind the AI race.

The proposed Apollo financing is a type of net-asset-value loan, commonly known as an NAV loan.

Rather than borrowing against a traditional operating business, the borrower uses the value of assets held inside an investment fund as collateral.

For SoftBank's Vision Fund 2, that means the underlying portfolio can be used to raise additional liquidity.

This structure can be useful for an investment firm or holding company because it allows the owner to obtain cash without necessarily selling assets.

For SoftBank, that flexibility is particularly valuable.

The company has accumulated a massive collection of AI investments, but many of those holdings are private and therefore difficult to monetize quickly.

Borrowing against them provides another way to finance new investments.

The trade-off is that debt increases financial leverage.

If the value of collateral falls materially, lenders may become more cautious and financing can become more expensive or more difficult to obtain.

That is why the reported increase in the Apollo facility deserves attention even though no final deal has been announced.

SoftBank founder and CEO Masayoshi Son has made artificial intelligence the centerpiece of the company's next phase.

The group has shifted from being a broad technology investor to making increasingly concentrated bets on AI infrastructure and leading AI companies.

OpenAI sits at the center of that strategy.

SoftBank's commitment to OpenAI is so large that financing the investment has become a story in its own right.

The company has already raised debt backed by its OpenAI stake, and now it is reportedly considering expanding borrowing tied to Vision Fund 2 as well.

This creates a highly interconnected financial structure.

SoftBank invests in AI.

AI companies need enormous amounts of capital.

SoftBank borrows against investment assets.

The borrowed capital can then support additional AI exposure.

The model works particularly well if the value of AI companies continues increasing.

But the opposite is also true.

If private AI valuations fall sharply, the same leverage can become a source of pressure.

The attraction is obvious.

OpenAI remains one of the most valuable and strategically important AI companies in the world.

Its ChatGPT products have helped push generative AI into mainstream consumer and enterprise use.

The company is also investing heavily in increasingly capable models, infrastructure and AI agents.

Those developments have created enormous expectations around future revenue.

SoftBank is effectively betting that OpenAI will become one of the dominant companies of the AI era.

That is why the company's decision to remain private for now matters.

OpenAI CEO Sam Altman has said the company will not conduct an IPO this year, with the long-anticipated public offering pushed toward 2027.

For SoftBank, that means an important potential source of liquidity remains unavailable in the near term.

A public listing would eventually give investors a market for their shares.

Until then, private financing and borrowing remain important tools.

One of the most striking features of the current AI boom is how interconnected the participants have become.

Nvidia supplies the chips.

Cloud providers supply computing.

AI laboratories develop the models.

Private-equity firms provide financing.

Investment conglomerates such as SoftBank provide capital.

Banks provide credit.

And major technology companies often invest in their own customers and suppliers.

The traditional boundaries between investor, customer, supplier and lender are becoming increasingly blurred.

SoftBank is a perfect example.

It is simultaneously an investor in AI companies and a borrower using AI-related assets to support additional investment activity.

That makes the company's balance-sheet decisions increasingly important to the wider AI ecosystem.

The timing of the potential loan increase is notable because the cost of insuring SoftBank's debt against default risk has recently risen.

According to the Bloomberg report, credit-default swaps on SoftBank climbed to a three-year high this week amid broader concerns around the AI sector.

That does not mean SoftBank is facing an imminent financial crisis.

Credit-default swap prices move for many reasons, and the company has significant assets.

But the increase does signal that investors are paying more attention to the conglomerate's financial exposure.

The more capital SoftBank commits to AI, the more important financing costs become.

Vision Fund 2 has made more than 300 investments since its launch and had more than $100 billion of committed capital as of February, according to the Bloomberg report.

That scale gives SoftBank extraordinary reach.

But it also creates a complex portfolio.

Some investments may eventually become highly successful.

Others may not.

Private-market valuations can remain stable for long periods and then change quickly when new financing rounds or public-market transactions reset expectations.

That makes borrowing against the portfolio an important financial decision.

The SoftBank strategy rests partly on a powerful assumption:

AI-related assets will continue increasing in value quickly enough to justify the enormous capital being deployed.

So far, investor enthusiasm has remained strong.

OpenAI has attracted enormous funding commitments.

AI infrastructure companies are raising capital.

Semiconductor demand remains high.

And major corporations continue spending aggressively on data centers.

But the market is also becoming more cautious.

Investors have started asking whether the enormous amount of money flowing into AI infrastructure will generate sufficient long-term returns.

That question applies directly to SoftBank.

If AI valuations rise, the company's borrowing capacity can increase.

If valuations fall, leverage becomes more uncomfortable.

SoftBank's assets are not all publicly traded.

That means their valuations can be less transparent than those of listed companies.

A public stock can fall 20% in a day.

A private investment may continue to carry its previous valuation until a new financing round establishes a different price.

This can create an illusion of stability.

The underlying value may be changing even when the official carrying value is not.

For lenders, that makes collateral quality particularly important.

For investors, it makes SoftBank's financing strategy worth watching.

The reported increase from $5.4 billion to as much as $9 billion is not merely a financing footnote.

It is another indication of how much capital major investors are willing to mobilize around artificial intelligence.

SoftBank is already one of the largest AI investors in the world.

Now it is reportedly considering increasing the amount it can borrow against its investment portfolio to finance that strategy.

The deal is not final.

Apollo and SoftBank have not publicly confirmed the reported terms.

And the move does not establish that SoftBank is under financial distress.

But it does reveal the scale of the company's ambitions.

SoftBank is not treating AI as one investment theme among many.

It is building its financial strategy around it.

The biggest question now is whether the extraordinary returns expected from artificial intelligence can arrive quickly enough to justify the extraordinary amount of capital being committed today.

For SoftBank, that question is becoming more immediate.

Because when billions of dollars of AI investments are financed with billions of dollars of debt, the future of artificial intelligence starts becoming inseparable from the cost of capital.