AI coding assistants

GitHub published details on how it approaches cost efficiency in Copilot, arguing that optimizing for shorter individual outputs can backfire by increasing retries and wasted work elsewhere in a coding task. The company frames efficiency as a full-task metric rather than a per-response one.

GitHub published a blog post arguing that canvas-style interfaces—rather than chat logs—are better suited for tracking and steering agentic coding workflows in Copilot. The post frames canvases as a way to keep long-running agent work visible and controllable without re-running expensive steps.

Microsoft is ending GitHub Copilot's flat-rate subscription model in favor of token-based billing starting June 1. Some developers report monthly costs rising from approximately $29-50 to $750-3,000, while others claim the increases only affect inefficient "vibe-coders" who iterate excessively without clear direction.