Published: July 21, 2025
Sign up for the Prompt API origin trial to use the Prompt API on your websites and web applications with real users. The origin trial is available from Chrome 139 to Chrome 144.
Learn more about how to use the Prompt API, and start creating compelling web applications powered by built-in AI
If you're new to origin trials, these are time-limited programs open to all developers, offering early access to experimental platform features. While there might be usage limits, developers can integrate these features for live testing, gathering user feedback, with the goal of informing iterations towards a full launch.
Example use cases
The Prompt API is a multimodal API that accepts text, image, and audio inputs. Read the Prompt API documentation for example code.
Text input
- Help the user digest information, for example, by letting them ask questions about hotel reviews to highlight only those that mention the Wi-Fi.
- Enrich user-generated content with structured data, for example, by suggesting a star-rating based on a review.
Image input
- Classify images, for example, to detect if a provided image likely depicts an ID or passport document before uploading the image data for manual verification.
- Suggest alternative text, for example, in a blogging platform where users can add images to their blog posts.
Audio input
- Transcribe audio, for example, to convert audio messages in an end-to-end encrypted chat application to text.
- Process audio data, for example, to filter out live recordings from a music collection.
Share your feedback
We look forward to hearing your feedback on the Prompt API.
- You can share your feedback on the API shape by commenting on an existing issue or by opening a new one in the Prompt API GitHub repository.
- For feedback on Chrome's implementation, file a Chromium bug.
- Learn how to use the Prompt API with Chrome Extensions.