# OpenAI 祕密提交美國 IPO 申請，估值最高達 1 兆美元。

*genai · news · 2026-06-09 · News18*

## Key points

- OpenAI 已秘密提交美國 IPO 申請，目標估值最高達 1 兆美元。
- OpenAI 的 ChatGPT 於五月達成 10 億月活躍應用用戶，是達成此成就最快的應用程式。
- 在 2026 年三月的融資輪中，OpenAI 估值為 8520 億美元，僅次於 Anthropic。
- 根據 Sensor Tower，Claude 的全球月活躍用戶年增長率為 640%，而 ChatGPT 為 62%。

OpenAI confidentially files for US IPO, eyes valuation up to 1 trillion. ChatGPT hits 1 billion monthly users earlier. OpenAI IPO: OpenAI has reportedly confidentially filed for a US IPO, becoming the second AI company after Anthropic to raise funds from the stock market. According to Reuters report, OpenAI didn’t disclose the size or terms of the offering and said a time hasn’t yet been determined. AI companies are seeking to raise capital from the primary market at a time when retail investors are looking to invest in the artificial intelligence boom. “We recently submitted a confidential S-1. We expect it to leak so we’re just announcing it. We have not decided on timing yet; it may be a while because there are things we want to do that are likely easier as a private company. But it’s a complicated set of tradeoffs and this gives us the option to go public sooner if that ends up being best," OpenAI said in the filing. Reuters had reported that the AI giant is targeting a valuation of up to $1 trillion in a stock market debut that could come as early as September. In the latest funding round, which concluded in March 2026, OpenAI is valued of $852 billion, the second most valuable AI company after Anthropic. 1 Billion Global Monthly Active App Users OpenAI’s ChatGPT has crossed 1 billion global monthly active app users, becoming the ​fastest app ever to reach the milestone, ‌according to estimates from market intelligence firm Sensor Tower. ChatGPT ⁠reached 1 billion MAUs in May, roughly ​three years after launch, surpassing the pace ​set by apps including Google Maps, TikTok, Instagram and YouTube, Sensor Tower said. As of the ​second ⁠quarter to date, Claude had 56 million global monthly active app users, while its year-over-year MAU ⁠growth ​of about 640% significantly ​outpaced ChatGPT’s 62% growth, according to Sensor Tower. SpaceX IPO Oversubcribed Investor demand for the $75 billion SpaceX IPO has surged, with multiple institutional investors submitting bids worth over $10 billion apiece. Retail investors can still submit orders for SpaceX shares on some platforms beyond the Wednesday deadline. The company is allocating as much as 30% of the offering to retail, Bloomberg News has reported. On Friday, SpaceX announced a deal with Alphabet Inc.’s Google that would see the Gemini AI model maker pay $920 million a month as part of a cloud services agreement set to run through 2029.

**Companies:** OpenAI, SpaceX, Alphabet Inc.
**Countries:** United States

[Read the full story on News18](https://www.news18.com/business/ipo/chatgpt-maker-openai-eyes-stock-market-debut-after-anthropic-files-secret-ipo-papers-ws-l-10137521.html)

---

Canonical: https://newsio.io/zh-TW/n/0cb965d8-1864-4217-be6d-3bc028cc224d/openai-ipo-1-chatgpt-10
Summarized by Newsio from News18. https://newsio.io/how-it-works