August 31 was one of those days that mark the end of an era and the start of another: Tim Cook signed off as Apple CEO after 15 years, OpenAI confirmed its ads business crossed the $1 billion mark in under 200 days, the world's two biggest music publishers dragged Anthropic to court, and Brussels decided ChatGPT is now, officially, a search engine.
Apple's first morning without Tim Cook in 15 years
- August 31 was Cook's final day as CEO; hardware chief John Ternus takes charge today, September 1, while Cook stays involved with the company in a new capacity.
- Cook hands over a company valued at around $4 trillion, roughly ten times what it was worth when he succeeded Steve Jobs in 2011.
Why it mattersWhy it matters: leadership changes at companies this size are once-in-a-generation events, and picking Ternus — a product engineer, not an operations executive — signals Apple wants to win the next hardware race, the one defined by AI.
ChatGPT ads: a $1 billion business in under 200 days
- OpenAI says ChatGPT's advertising business reached a $1 billion annual run rate less than 200 days after launch, with revenue up 25% in just the last few weeks.
- Self-serve ads opened to 31 European markets on August 31, as OpenAI chases a reported $2.5 billion ad revenue target for 2026.
Why it mattersWhy it matters: no ad platform in history has scaled this fast — OpenAI is building a rival to Google's business model inside the product that is already eating Google's queries.
Sony and Warner take Anthropic to court
- Sony Music Publishing and Warner Chappell sued Anthropic in California federal court, calling its training practices 'one of the largest and most blatant ongoing thefts of intellectual property in history.'
- The multi-billion dollar suit seeks hundreds of thousands of dollars per infringed song, one year after Anthropic paid $1.5 billion to settle a parallel case with book authors.
Why it mattersWhy it matters: after books, music is the next front in the war over what AI training data costs — and every settlement sets the price that the whole industry will end up paying creators.
Brussels declares ChatGPT a search engine
- The European Commission designated ChatGPT a 'Very Large Online Search Engine' under the Digital Services Act, citing 159 million monthly EU users — more than triple the 45 million threshold.
- OpenAI now faces the law's strictest oversight tier, with compliance due by the end of November; Reddit and Roblox received designations the same day.
Why it mattersWhy it matters: regulating ChatGPT as a search engine — not a chatbot — changes what OpenAI owes the public: risk audits, researcher access to data, and transparency about how answers get ranked.
The big picture
The pattern of the day: AI stopped being a promise and became infrastructure with owners, invoices and regulators. Apple changed captains to compete in it, OpenAI proved it can monetize attention at Google speed, the music industry put a price tag on training data, and Europe decided the era of treating chatbots as experiments is over. The companies that win from here won't be the ones with the best demos — they'll be the ones that survive the bills.
Sources & further reading
- 9to5Mac — Tim Cook's last day as Apple CEO
- AppleInsider — Cook signs off with tribute to John Ternus
- Digiday — ChatGPT ads hit $1B run rate as Europe gets self-serve access
- Forbes — ChatGPT ads hit $1 billion run rate in 200 days
- TechCrunch — Sony Music, Warner sue Anthropic
- Billboard — Sony & Warner sue Anthropic in AI copyright suit
- Euronews — EU places ChatGPT, Reddit and Roblox under strictest DSA rules