ProofReader API

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Connie Leung

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Jul 2, 2025, 8:21:27 AMJul 2
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Hi all,

I found the example codes of ProofReader Playground here: https://github.com/GoogleChromeLabs/web-ai-demos/tree/main/proofreader-api-playground

'ProofReader' in self returns false. 
Can I expect ProofReader API will be EPP soon? 

Thanks,

Connie

Thomas Steiner

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Jul 2, 2025, 8:42:11 AMJul 2
to Connie Leung, Chrome Built-in AI Early Preview Program Discussions
Hi Connie,

Just to be sure, it's Proofreader (lower-case 'r'), not ProofReader. It's behind the #proofreader-api-for-gemini-nano flag. So far it's only partly implemented, but you can play with it already. 

Cheers,
Tom

Thomas Steiner, PhD—Developer Relations Engineer (blog.tomayac.comtoot.cafe/@tomayac)

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Connie Leung

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Jul 2, 2025, 10:57:00 AMJul 2
to Chrome Built-in AI Early Preview Program Discussions, Thomas Steiner, Chrome Built-in AI Early Preview Program Discussions, Connie Leung
Hi Tom,

Thanks for the clarification.

I updated my Chrome Canary browser, saw the new Proofreader flag, and enabled it.

Best regards,

Connie

Connie Leung

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Jul 3, 2025, 6:35:37 PMJul 3
to Chrome Built-in AI Early Preview Program Discussions, Connie Leung, Thomas Steiner, Chrome Built-in AI Early Preview Program Discussions
Hi Thom,

The https://www.npmjs.com/package/@types/dom-chromium-ai package does not include the type definition for the Proofreader API. Does Christian need help?  I need to type to write TS/JS codes in frontend frameworks.

Thanks,

Connie

Thomas Steiner

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Jul 4, 2025, 3:12:52 AMJul 4
to Connie Leung, Chrome Built-in AI Early Preview Program Discussions, Thomas Steiner
Hi Connie,

It's already in the works: https://github.com/DefinitelyTyped/DefinitelyTyped/pull/72950. Feel free to review. 

Cheers,
Tom

Thomas Steiner, PhD—Developer Relations Engineer (blog.tomayac.comtoot.cafe/@tomayac)

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Jeremy Ellis

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Aug 11, 2025, 2:17:44 AMAug 11
to Chrome Built-in AI Early Preview Program Discussions, Thomas Steiner, Chrome Built-in AI Early Preview Program Discussions, Connie Leung
Proofreader working with flags on windows Chrome Version 139.0.7258.66.

It is a really fascinating model. My demo also has the GeminiNano LLM model working. Thanks for the effort Google Team.    

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