Vibe coding needs infrastructure. Supabase is trying to provide it. The startup, which makes backend tools for building artificial intelligence apps, said on Thursday that it raised $500 million at a valuation of $10.5 billion, the latest sign that venture investors are seeking to pour money into all corners of the AI market that are showing signs of growth. Supabase's valuation has roughly doubled since its last funding round in October, riding the wave of AI-assisted coding , which allows