Public beta version of Google's coding agent AI 'Jules' released, powerful coding with Gemini 2.5 Pro

Google released the public beta version of its AI-powered coding agent 'Jules' on May 21, 2025 (Japan time). Jules is equipped with

Gemini 2.5 Pro is available in Jules, our asynchronous coding agent that can tackle complex tasks in large codebases that used to take hours. It can plan steps, modify files and more in just minutes. ⏱️

Jules is now in public beta → https://t.co/RPCRFWtAv1 #GoogleIO pic.twitter.com/5zhRVFeUpm

— Google (@Google) May 20, 2025

Jules - An Asynchronous Coding Agent
https://jules.google/

Jules is an AI coding agent announced in December 2024 and described as 'an AI coding assistant that can automatically fix software bugs and prepare code changes while developers sleep.'

Google announces 'Jules,' a coding assistant AI that automatically fixes bugs while you sleep - GIGAZINE

Jules was released only to a 'select group of trusted testers' for nearly half a year after its announcement, but was finally released as a public beta in May 2025. Jules will automatically perform tasks such as bug fixes, version number changes, and testing, and it is appealing that users can focus on what they want to do by leaving the tedious tasks to Jules.

Jules integrates with the GitHub workflow system and helps you import repositories, branch changes, and create PRs (pull requests), and also includes the ability to clone your code on virtual machines in the cloud to make sure your changes work, and a test suite to run existing tests or create new ones.

Additionally, Jules will provide a “plan” of what it will do before writing the code, so users can see the plan and see the direction Jules will go in, and even ask for revisions to the plan if necessary.

Jules is an asynchronous AI coding agent, so there is a user approval process before a pull request is actually submitted, and it will also generate an audio summary of the changes.

On the same day, Google also announced Stitch, a tool that lets users design complex UIs based on simple prompts and images. Stitch leverages the multimodal capabilities of Gemini 2.5 Pro and includes image input, interactive chat, theme settings, and the ability to paste into Figma.

From idea to app: Introducing Stitch, a new way to design UIs - Google Developers Blog
https://developers.googleblog.com/en/stitch-a-new-way-to-design-uis/

Transform ideas into UI designs with Stitch - YouTube