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Intent to Ship: On-device Web Speech API (blink-dev)
Chromium blink-dev mailing list, 2025
Read the originalRead on October 17, 2026
- What it is
- The Chromium developer discussion for the on-device Web Speech API, in which a reply gives the size of each on-device language pack in Chrome on Windows, Mac and Linux.
- How much weight it carries
- A public design discussion from January 2025, written before the feature shipped. The pack size is a reply in that thread, not a final product specification.
Facts taken from this source
- A January 2025 reply in the Chromium thread estimates each on-device speech recognition language pack in Chrome on Windows, Mac and Linux at about 60 MB.
“for Chrome on Windows/Mac/Linux, there's only one instance of each on-device speech recognition language pack and each language pack is ~60MB” (Reply on download sizes)