Opera WebAI
Opt-in early preview that lets websites and extensions in Opera browsers run AI models locally, with no API key.
Overview
Opera WebAI, previewed October 27, 2026, exposes on-device AI to websites and browser extensions in Opera One, with Opera GX and Opera Neon to follow. Developers get Prompt, Decision and Semantic Embeddings APIs, and reports also list Summarizer, Writer, Rewriter, Translator and Proofreader. It is off by default: users enable it under Settings > Opera AI > Enable Web AI API, which downloads a local model. It runs on 64-bit Windows PCs and Apple silicon Macs only. Opera calls WebAI a proposed web standard with backing from Google and Microsoft, and published six experimental extensions alongside it.
This is a sourced directory entry. Features and capabilities are reported in the linked sources; this entry does not document independent Aymorphic testing.
Key features
- Prompt, Decision and Semantic Embeddings APIs for pages and extensions
- Runs models locally; no API key or separate AI app required
- Opt-in via Settings > Opera AI > Enable Web AI API; per-site permissions
- Supported on 64-bit Windows and Apple silicon Macs; not Intel Macs, Linux or Windows on Arm
- Six experimental Opera extensions published with the preview
Use cases
- Browser extensions that summarize or quiz articles without sending text to a cloud API
- Websites adding on-device semantic search or classification
- Privacy-sensitive in-browser AI features
Pricing
Free early preview inside Opera browsers; no separate pricing published.
Pricing reflects the source record and may change. Confirm current terms with the provider.
Dates and sources
- Released
- 27 Oct 2026
- Record updated
- 1 Nov 2026
- Record last checked
- 1 Nov 2026