OpenAI has confidentially filed an S-1 with the SEC to begin its IPO process, one week after rival Anthropic took the same step. The move sets up a high-profile public debut that will be measured against SpaceX's record-setting offering and comes as internal concerns about revenue, growth, and compute costs have been reported.

Reports indicate that executives, including CFO Sarah Friar, have not been as enthusiastic as CEO Sam Altman about a fast-tracked IPO.
Both firms have been competing in an IPO race for the better part of a year.
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Mistral raised $3.5 billion in a round led by Samsung, pushing its post-money valuation above 21 billion euros as it builds its own data centers. The French startup aims to differentiate from OpenAI and Anthropic by creating custom AI tools for individual companies while planning 100% compute growth over five years.
Stoke Space obtained roughly $1 billion in Series E funding to prepare Nova Pathfinder for an early 2027 launch while accelerating the larger Nova Block 2 scheduled for 2029. The capital will also expand the Moses Lake test facility and increase maximum payload fivefold to 15 metric tons in low Earth orbit, preserving full reusability for both stages.
Mathspace disclosed that attackers stole personal data belonging to 1,079,819 students, staff, and parents or guardians in Australia and New Zealand after breaching its Metabase system. The incident is the latest in a campaign exploiting a Metabase zero-day vulnerability used by multiple companies.