TikTok spent nearly $20 million a month on Microsoft's Azure OpenAI Service as of March.
Citing internal financial documents, The Information reports that income from the video content platform amounted to nearly 25 percent of the service's revenue. The Azure OpenAI Service is expected to generate $1 billion annually or $83 million per month.
It is not known how much video content platform TikTok is currently spending on the OpenAI service, nor how much it plans to spend the rest of the year.
Walmart and TurboTax's Intuit are also customers, The Information reports, alongside Abu Dhabi–based G42.
TikTok's large contribution to Microsoft's Azure OpenAI Service could be at risk, given President Biden's April announcement that the platform will be banned or sold in the US in nine months.
TikTok parent company ByteDance is fighting the ruling in court.
Even if it is not banned, it may leave OpenAI or reduce its usage as it develops its own AI models and chips. The Verge last year reported that ByteDance was using OpenAI to help build its own tech.
In the US, TikTok primarily uses Oracle Cloud for its core service.
