Startup Together AI, which provides users access to artificial intelligence computing, has raised $305 million from investors in deal led by General Catalyst, bringing the valuation of the company to $3.3 billion — a signal that corporate demand for AI is still strong. Saudi Arabia's Prosperity7 Ventures co-led the round, which also included Salesforce Ventures, Nvidia Corp., Kleiner Perkins, Emergence Capital, Lux Capital and other investors....