How we make AI coding more cost efficient without sacrificing task quality

GitHub's engineering blog drops a genuinely useful plot twist in the AI coding cost saga: the terse, "cheap-looking" answer isn't always the cheap one. In the agentic world, a short stub can burn far more compute once you account for the loop — the tool calls, context re-fetches, and failure retries it triggers downstream. The post breaks down how Copilot is shifting optimization from raw token generation to the complete