Building with Gemini 3 in Jules- Google Developers Blog

What this post added

This post details the integration of Gemini 3 Pro into Jules, an autonomous coding agent. Key technical advancements include improved agentic capabilities for clearer reasoning, stronger intent alignment, and enhanced reliability in multi-step tasks and context maintenance. Jules is being extended to multiple surfaces (terminal, Gemini CLI, API) with a unified project view. The CLI has been updated with parallel runs, Windows support, a simpler flow, and a diff viewer. The Jules API is now stable for custom workflows. Memory handling and environment variable support have been improved. The critic agent's replanning and re-engagement logic has been enhanced. Git handling has been made safer. VM performance has been improved.