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- OpenAI said to weigh legal action against Apple over Siri deal
OpenAI said to weigh legal action against Apple over Siri deal
Bay Area Times
May 15, 2026
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Top stories today:
- OpenAI said to weigh legal action against Apple over Siri deal
- Cerebras +68% after year’s biggest U.S. IPO raises $5.5B
- Musk v. Altman closes with clash over Sam Altman credibility claims
- Anthropic agrees to $30B raise co-led by Sequoia at $900B valuation
- OpenAI brings OpenClaw-like remote Codex control to ChatGPT app
- xAI co-founder seeks up to $1B for new AI startup at up to $5B valuation
0. Data and calendar
All values as of 6 AM ET / 3 AM PT, other than S&P500 and NASDAQ close (4 PM ET / 1 PM PT).
All times are ET.
Listen to our AI-generated podcast summarizing today’s newsletter (beware of hallucinations):
1. OpenAI said to weigh legal action against Apple over Siri deal
Representational image generated using ChatGPT.
OpenAI lawyers are reportedly working with an outside law firm on potential legal options.
Sending Apple a notice alleging breach of contract is among the options being explored.
OpenAI expected more ChatGPT subscribers and deeper Siri integration through the Apple deal.
Limited use of OpenAI technology across Apple’s platforms has frustrated OpenAI internally.
Apple has had its own raised concerns about whether OpenAI does enough to protect user privacy.
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3. Cerebras +68% after year’s biggest U.S. IPO raises $5.5B
~60% more than initially targeted was raised through Cerebras’ IPO.
Trading gives Cerebras a $67B market value based on outstanding shares and an ~$83B fully diluted valuation.
The IPO is the biggest since Medline Industries’s $7.2B offering in Dec. and the largest-ever U.S. semiconductor listing, topping Arm Holdings’ $5.23B raise in 2023.
25x+ oversubscribed, according to Cerebras’ CEO.
Cerebras’ CEO and CTO held stakes worth $3.2B and $1.7B, respectively.
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5. Musk v. Altman closes with clash over Sam Altman credibility claims
Representational image generated using ChatGPT.