Enterprise AI coding assistant Augment Code announced a $227 million Series C led by Index Ventures, crossing a $2 billion valuation. The company pitches deep whole-codebase indexing against Copilot-class tools. Investors continue to concentrate capital in developer-infrastructure AI. It matters because capital concentration signals which layers of the AI stack investors believe will capture durable value. The piece has also been circulating in social discussion among people who watch this beat. Caveat: headline valuations can outrun revenue proof, so treat round sizes as signals rather than settled truth.