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Opera Previews WebAI for Running Models Locally in the Browser

October 27, 2026 at 20:48 EDT

Foundation Models
AI Agents

Opera has introduced WebAI, a proposed web standard that lets websites and extensions use AI models running in the browser on a user’s device. The opt-in early preview is available in Opera One, with Opera GX and Opera Neon also included in the preview rollout.

October 27, 2026 · Opera

AI runs where you browse

WebAI lets websites and extensions use supported models on the user’s device. Opera’s opt-in early preview brings local AI into the browser.

A browser-based AI pipeline

Website or extensionRequests an AI capability

Browser modelProcesses on the device

Text · classify · relateExamples of supported tasks

More control

Opt-in activation and site-specific permissions let users choose whether to enable WebAI and which sites can access local AI.

Hardware matters

The device does the processing, so response speed depends on its capabilities. Model downloads may take several minutes.

Preview availability

64-bit Windows PCs with Intel or AMD processors, and Macs with Apple silicon. Opera says Linux, Windows on Arm and Intel-based Macs are not supported.

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