Intent to Experiment: Summarizer API

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Domenic Denicola

خوانده‌نشده،
۱۰ اکتبر ۲۰۲۴، ۲:۵۹:۰۹۲۰۲۴/۱۰/۱۰
به blink-dev

Contact emails

dom...@chromium.org, fer...@chromium.org, kenji...@chromium.org


Explainer

https://github.com/explainers-by-googlers/writing-assistance-apis/blob/main/README.md


Specification

None yet, although we'll be writing one during the experimentation period.


Summary

A JavaScript API for producing summaries of input text, backed by an AI language model.


Blink component

Blink>AI>Summarization


TAG review

https://github.com/w3ctag/design-reviews/issues/991


TAG review status

Pending


Risks


Interoperability and Compatibility

This feature has definite interoperability and compatibility risks, due to the likelihood that different implementations will use different language models, prompts, and fine-tunings, and even within a single implementation such as Chrome, these pieces will likely change over time. Additionally, not all browsers and operating systems will have a built-in language model to expose, and not all devices will be powerful enough to run one effectively.


We are taking a variety of steps to attempt to mitigate these risks. For example, the specification is designed to allow the API to be backed by a cloud-based language model. This approach could extend the functionality to a wider range of devices and users. The API is designed to abstract away the specifics of the underlying language model, including prompts and fine-tuning. This prevents developers from relying on specific outputs, ensuring they receive a generalized summary rather than structured data that might vary across implementations. Finally, the API surface is designed with many clear points of failure, that encourage the developer to probe for capabilities ahead of time and fall back to other techniques if a capability is not available.


Nevertheless, interoperability and compatibility risk remains high for these sorts of APIs, and we'll be closely monitoring it during the prototyping period.


Gecko: No signal (https://github.com/mozilla/standards-positions/issues/1067)


WebKit: No signal (https://github.com/WebKit/standards-positions/issues/393)


Web developers: Mixed signals (https://github.com/WICG/proposals/issues/163). Prototyping with partners behind a flag revealed enthusiasm and many prototypes built, from which we drew the discussion of potential use cases [1]. Feedback on the WICG thread was more mixed. Some themes we saw include: asking for more capabilities (e.g. full prompting of a language model instead of higher-level APIs (our response at [2]); multi-modal support); desire to make sure the API actually works robustly in many real-world use cases; removal of any safety/ethical safeguards; and confusion about client-side vs. cloud APIs.


[1]: https://github.com/WICG/writing-assistance-apis/blob/main/README.md#summarizer-api

[2]: https://github.com/WICG/writing-assistance-apis/blob/main/README.md#directly-exposing-a-prompt-api)


Other signals:


Activation

This feature would definitely benefit from having polyfills, backed by any of: cloud services, lazily-loaded client-side models using WebGPU, or the web developer's own server. We anticipate seeing an ecosystem of such polyfills grow as more developers experiment with this API.



WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications?

None



Goals for experimentation

We're most interested in feedback on whether the summarization quality we can provide is useful to sites, and whether the options we've defined for controlling the summarization are useful. Additionally, we want to learn about the impact of the current API's limitations, e.g. maximum input length, to determine where we should spend our best effort lifting those limits.


The origin trial will be limited to English-language input to start. We are hoping to add support for more languages over time. Learning how much of a limitation this is, and which languages ought to be prioritized, will also be helpful.


Finally, we're also interested in feedback about the API shape and ease of use.


Ongoing technical constraints

None.


Debuggability

It is possible that giving DevTools more insight into the nondeterministic states of the model, e.g. random seeds, could help with debugging. See related discussion at https://github.com/explainers-by-googlers/prompt-api/issues/9.


Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?

No. Not all platforms will come with a language model. In particular, in the initial stages we are focusing on Windows, Mac, and Linux.


Is this feature fully tested by web-platform-tests?

No. We hope to work on web platform tests for this feature, but how much we can guarantee as testable beyond the surface API is unclear, given the nondeterministic nature of the output. The explainer discusses this in https://github.com/WICG/writing-assistance-apis/blob/main/README.md#specifications-and-tests.


Flag name on chrome://flags

summarization-api-for-gemini-nano


Finch feature name

EnableAISummarizationAPI


Requires code in //chrome?

True


Tracking bug

https://issues.chromium.org/issues/351744634


Estimated milestones

Origin trial desktop first

131

Origin trial desktop last

136

DevTrial on desktop

129



Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5193953788559360?gate=5082928917512192


Links to previous Intent discussions

Intent to Prototype: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM0wra8iMt24s_jP9Ng9_RKU3cH4wFywAt00kitJCeMJ3CaUAw%40mail.gmail.com



This intent message was generated by Chrome Platform Status.


Mike Taylor

خوانده‌نشده،
۱۰ اکتبر ۲۰۲۴، ۱۶:۵۴:۲۱۲۰۲۴/۱۰/۱۰
به Domenic Denicola،blink-dev

LGTM to experiment from 131 to 136 inclusive.

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Hrishikesh Kakkad

خوانده‌نشده،
۱۸ فوریه ۲۰۲۵، ۱۶:۲۵:۴۹ (۷ روز پیش) ۱۸ فوریه
به blink-dev،Mike Taylor،Domenic Denicola
I want to experiment with the summarizer API
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