OpenAI Warns EU Antitrust Regulator Of Big Tech’s Potentially Harmful Conduct, Including That Of Its Investor Microsoft: Report

According to a report by Bloomberg, OpenAI approached EU antitrust chief, Teresa Ribera, to express its concerns and highlight “difficulties” it is facing in competing with these big tech giants.
Open AI CEO Sam Altman speaks during Snowflake Summit 2025 at Moscone Center on June 02, 2025 in San Francisco, California. Snowflake Summit 2025 runs through June 5th. (Photo by Justin Sullivan/Getty Images)
Open AI CEO Sam Altman speaks during Snowflake Summit 2025 at Moscone Center on June 02, 2025 in San Francisco, California. Snowflake Summit 2025 runs through June 5th. (Photo by Justin Sullivan/Getty Images)
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Rounak Jain·Stocktwits
Updated Oct 09, 2025   |   12:31 PM GMT-04
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OpenAI has reportedly cautioned the European Union’s antitrust regulator about potentially harmful conduct by big technology companies like Apple Inc. (AAPL), Alphabet Inc.’s (GOOG) (GOOGL) Google, and even Microsoft Corp. (MSFT), its biggest investor.

According to a report by Bloomberg, OpenAI approached EU antitrust chief Teresa Ribera to express its concerns and highlight “difficulties” it is facing in competing with these big tech giants. The report added that OpenAI targeted Google, Apple, and Microsoft during the meeting with Ribera.

The firm has also sought an intervention from the regulators to “avoid the lock-in of customers by large platforms,” according to the report, calling upon them to make sure the competition in the AI sector is preserved.

OpenAI’s concerns come at a time when the company has inked partnerships with Microsoft’s competitors for cloud services, including Google and Oracle Corp. (ORCL). In July, Microsoft termed OpenAI a competitor in the AI and search categories, and in September, it further deepened its partnership with OpenAI rival Anthropic, including the startup’s AI models in its Copilot assistant. Microsoft has so far invested $13.75 billion in OpenAI, according to Bloomberg.

In August, however, OpenAI publicly called out Google’s “illegal search monopoly,” citing a U.S. federal court’s observations in 2024. “As more people adopt AI, Google continues to dictate terms around access to data and create distribution bottlenecks, including access to prime real estate on mobile devices, browsers, and at the top of its search results,” the company stated.

Retail sentiment around OpenAI on Stocktwits trended in the ‘bullish’ territory at the time of writing.

Also See: CoreWeave CEO Reportedly Dismisses 'Circular Investment' Concerns, Says Companies Are Buying AI Infra Because Of Demand

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