Google demos JITRO self‑coding AI

Google is being discussed for a new coding system called JITRO, but the clearest public record still points to Google’s shipping product Jules and its newer Antigravity coding agent inside Google AI Studio. (blog.google) Google described Jules on May 20, 2025 as an “autonomous coding agent” that works on existing repositories, clones code into a Google Cloud virtual machine, and handles jobs such as writing tests, fixing bugs, and updating dependencies. On August 6, 2025, Google said Jules had left beta after developers shared more than 140,000 code improvements. (blog.google 1) (blog.google 2) Google also expanded its coding push on March 18, 2026 with Antigravity in Google AI Studio, a system Google said can turn prompts into web apps, add databases and sign-in, install libraries, and connect outside services. Google said the tool can provision Cloud Firestore and Firebase Authentication after user approval. (blog.google) A coding agent is different from an autocomplete tool. Google’s own product pages separate Gemini Code Assist, which works inside an integrated development environment with suggestions and smart actions, from Jules, which runs tasks asynchronously on a codebase and returns a plan, reasoning, and code changes. (developers.google.com) (blog.google) Google’s model stack also now includes code execution, which lets Gemini generate and run Python, inspect the result, and iterate before answering. Google Cloud documentation says that feature is available on several Gemini models, including Gemini 2.5 Pro and Gemini 3.1 Pro preview. (docs.cloud.google.com) That helps explain why demos of “self-coding” systems look less like a chat box and more like a workflow. Google’s recent developer products are built around agents that plan steps, call tools, edit multiple files, and wire up services, rather than only suggesting the next line of code. (blog.google 1) (blog.google 2) (docs.cloud.google.com) What is not yet clear from Google’s public documentation is whether JITRO is a separately launched product, an internal codename, or a label being applied online to work that overlaps with Jules or Antigravity. I could not verify a Google announcement page for JITRO itself from official Google sources before publication. (blog.google 1) (blog.google 2) (jules.google.com) The immediate takeaway is narrower than the hype around one viral clip. Google already has public products that match much of the behavior shown in agentic coding demos: background task execution in Jules, app-building flows in AI Studio, and model-level code execution in Gemini. (blog.google) (blog.google) (docs.cloud.google.com)