{"type":"post","id":"underdog-releases-woof-a-31-7-mb-open-73d532","slug":"underdog-releases-woof-a-31-7-mb-open-73d532","title":"Underdog releases Woof, a 31.7 MB open-weight text-to-speech model that runs in the browser and on CPU","description":"Underdog's Hugging Face model card describes Woof as a small English text-to-speech model, now available there in a two-voice build that runs on a laptop CPU using NumPy.","retrieval_nugget":"Underdog's Hugging Face model card describes Woof as a small English text-to-speech model, now available there in a two-voice build that runs on a laptop CPU using NumPy. Its reported size, speed and word-error figures make local speech generation worth testing, while the non-commercial license is a major constraint for product teams.","published_at":"2026-11-07","updated_at":"2026-11-07","record_date":"2026-11-07","date_kind":"published_at","topics":["local-models","open-models","generative-media"],"entities":["Underdog","Woof","ConwayResearch","Kyutai Mimi","Gradium TTS Hard Cases","Fish Audio Drama 3"],"related_patterns":["generative-media-becomes-application-infrastructure"],"novelty_label":"new_fact","what_changed":"The same Woof release now documents a two-voice, 40.6 MB CPU/Numpy model, with updated accuracy and performance claims, alongside a 31.7 MB one-voice browser version.","prior_refs":["https://newruntime.com/posts/underdog-releases-woof-a-30-7m-parameter-open-7db0c0/"],"source_url":"https://huggingface.co/ConwayResearch/Underdog-Woof","source_urls":["https://huggingface.co/ConwayResearch/Underdog-Woof"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:underdog-releases-woof-a-31-7-mb-open-73d532","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/underdog-releases-woof-a-31-7-mb-open-73d532/","markdown":"https://newruntime.com/posts/underdog-releases-woof-a-31-7-mb-open-73d532.md","json":"https://newruntime.com/posts/underdog-releases-woof-a-31-7-mb-open-73d532.json"},"markdown_url":"https://newruntime.com/posts/underdog-releases-woof-a-31-7-mb-open-73d532.md","next_reads":[{"type":"topic","path":"/topics/local-models/","url":"https://newruntime.com/topics/local-models/","title":"Local Models","reason":"Explore the local-models topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/local-models.md","json_url":"https://newruntime.com/topics/local-models.json"},{"type":"topic","path":"/topics/open-models/","url":"https://newruntime.com/topics/open-models/","title":"Open Models","reason":"Explore the open-models topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/open-models.md","json_url":"https://newruntime.com/topics/open-models.json"},{"type":"topic","path":"/topics/generative-media/","url":"https://newruntime.com/topics/generative-media/","title":"Generative Media","reason":"Explore the generative-media topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/generative-media.md","json_url":"https://newruntime.com/topics/generative-media.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}