The maker of Claude’s IPO filing reveals staggering losses, major risks, and how much control its co-founders will retain.

No team has won a title without a first- or second-team All-WNBA player. Golden State is two wins away from doing it.

Transfer tax revenue is expected to hit $417 million this year as AI money floods the luxury market.

Reporter Carole Cadwalladr, who helped break Facebook’s biggest scandal, hopes the New Mexico ruling stops Silicon Valley from rewriting history.

The ballot measure would speed up environmental reviews for housing and much more. Usual allies are split over whether that’s worth the trade.

Despite opposition to Prop. 40 from Gavin Newsom and several major labor groups, teachers in San Francisco and Los Angeles are among the local groups backing the tax.

Ben Jaros and Joshua Rauh estimate Prop. 40 would raise $30 billion but drive out enough billionaires to leave the state $39 billion poorer.

Plus: The city unions holding out for pricier contracts, Newsom’s silence on the race for Nancy Pelosi’s seat, and Manny Yekutiel’s campaign debt.

After losing to the Falcons four years ago, the 49ers traded for Christian McCaffrey and advanced to the NFC Championship Game.

After an almost-perfect start to this season, how can Kyle Shanahan’s team make the most of this time off and come back stronger for the stretch run?

Kyle Shanahan’s team fell to 6-1 with a 29-20 defeat to the Falcons on Sunday at Mercedes-Benz Stadium.

Coach Natalie Nakase has referred to her center as Golden State’s MVP after several playoff wins.

With luxury home prices up 30% to 40%, the city has a whole new crop of eight-figure neighborhoods 

The owners of Bare Bones are good friends and industry pros with many years of restaurant experience. And yes, they’re serving porchetta.

Golden State shut down Angel Reese and tied the WNBA Finals at 2-2 with an outstanding defensive performance.

Before a first date, locals decide whether the other person’s stance on tech is a dealbreaker.

Ponytail kimchi, mozzarella corn dogs, and an entire wall of instant ramen. This Daly City supermarket is here to hold your hand though all of it.

Plus: Mystery panties inside the Oracle mitt; the ‘Hard Forks’ guys on their new studio; punk kids take Valencia Street; and a long, long line to buy the iPhone Duo.

In media appearances, two safety researchers say a leak hunt and disappearing texts led to their firings.

In 2023, companies were abandoning San Francisco office space left and right. Some investors saw an opportunity in the crisis.

The Grizzlies went on a 17-0 fourth-quarter run to stun Steve Kerr’s team after it built a 12-point lead with 3:47 remaining.

The Valkyries star is accustomed to leading by example. Facing a 2-1 series deficit against Angel Reese and the Dream, Williams is finding her voice.

Retired San Francisco Deputy Chief Ann Mannix and her daughter Katie were killed in their Marin home, allegedly by their husband and father, retired Officer Kevin Mannix.

Gov. Gavin Newsom, who once ran the city, joins a roster of deep-pocketed donors backing the props.

The mayor has declared a local state of emergency to enable the city to “cut through red tape” during storm preparation, he said Friday.

John Lynch and Kyle Shanahan almost always look to bolster the defensive line, but wide receiver could be a more pressing need.

Flaws in a popular coding language send companies, universities, and governments rushing to secure their websites.

Warner’s high-risk, high-reward technique has made him one of the NFL’s most dangerous defenders.

Reps. Liccardo, Panetta and Khanna ask the Trump Administration who ordered the restrictions on the SpaceX service.

The San Francisco Standard and Amazon deliver on a summer filled with packed crowds and unforgettable film screenings.