Wispr Flow Builds Its Own Speech Model, GitHub Asks If RAG Is Dead

Wispr Flow shipped its own in-house speech model today, which is a bigger strategic move than it sounds. Meanwhile, GitHub asked whether RAG is dead and whether Skills killed MCP — two questions that point to a fast-shifting stack for AI product builders. Teresa Torres also walked through how she built a production tool without engineers, which is worth reading if you're thinking about what "PM-led development" actually looks like in practice.