Axios Pro Exclusive ContentExclusive: Modal raises $750M and passes $1B in ARRIllustration: Aïda Amer/Axios. Stock: Getty ImagesAI infrastructure startup Modal raised a $750 million Series D at a $15.75 billion post-money valuation and topped $1 billion in annualized run rate, CEO Erik Bernhardsson tells Axios Pro exclusively.Why it matters: Valuations for AI-specific serverless cloud platforms like Modal and Baseten are rocketing as companies look to secure compute....