Google revealed a new feature on Tuesday for its vibe-coding app, Opal, enabling the creation of automated workflows. A fresh agent in Opal lets users develop mini apps for task planning and execution using text prompts. The feature employs the Gemini 3 Flash model to select tools for task execution, like using Google Sheets to track memory across sessions for apps, such as a shopping list for e-commerce. This agent independently manages and plans task steps.
Google highlighted these agents’ interactivity; they request more information from users if needed or provide choices for next steps. This allows non-technical users to design sophisticated app workflows, according to Google.
Introduced to U.S. users in July 2025, Opal enables anyone to create or modify mini web apps. By October 2025, Opal was available in 15 more countries including Canada, India, Japan, South Korea, Vietnam, Indonesia, Brazil, and Singapore. In December, Google integrated Opal into the Gemini web app, permitting app creation via a visual editor without coding.
Many startups outside Google are building tools for app development through natural language prompts. Lovable and Replit are noteworthy, along with emerging startups like former Replika founder’s Wabi, Softbank and Lightspeed-backed Emergent, and Accel-backed Rocket.new gaining attention.