Web features explorer

LanguageModel

Limited availability

This feature has received a negative standards position from at least one browser vendor — It's very unlikely to ever become Baseline in this current form.

The LanguageModel API prompts an on-device language model. Also known as the Prompt API.

Browser support

  • Chrome 148 Released on 2026-05-05
  • Chrome Android Not supported
  • Edge Not supported
  • Firefox Not supported Position: negative (concerns: interoperability)
  • Firefox for Android Not supported Position: negative (concerns: interoperability)
  • Safari Not supported Position: oppose (concerns: interoperability, privacy, portability)
  • Safari on iOS Not supported Position: oppose (concerns: interoperability, privacy, portability)

MDN documentation

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Specifications

View as JSON | Edit this feature | Report an issue | Web-features entry: source, dist