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Voice, Vision & Multimodal

🐱KittenTTS

ACTIVE STEADY

KittenML/KittenTTS

State-of-the-art TTS model under 25MB 😻

⭐ Very popular: 15k stars, gaining about 90 a week

View on GitHub ↗

repo profile

vintage 2025 1 year old
delivery library
language Python
license Apache-2.0

momentum

total stars 15k
stars added last week +90
HN peak 1k pts 1y ago
weekly downloads 1k /wk · PyPI
binary downloads 340k total · GitHub releases
commits / week 0 steady
issues closed 13% ~2d to close, median
contributors 4
release cadence quarterly
last activity 2mo ago

durability

backing community / independent community
openness permissive
bus factor 2 concentrated
top-author share 38% 6 mo

bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.

since we covered it

monthly average + 776/mo (+7%/mo) · + 4k total since PR#28

why it's a big deal

  • Local TTS removes a major dependency for fully self-hosted agents.
  • Small runtime footprint makes voice interfaces practical on commodity hardware.
  • Fits naturally into agent workflows that need fast voice output without cloud latency.

under the hood

  • Optimized neural TTS pipeline designed for efficient local inference.
  • Lightweight model design aimed at low-resource environments.
  • Simple integration path for agent frameworks and automation scripts.

our take from PR#28, 2026-02-25

star history

PR#28 · 11k15k now Aug 2025Aug 2026
  1. PR#28 11k 2026-02-25
  2. now 15k + 4k since first covered

curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.

understory

Better known than its recent output, coasting a little on attention.

-55 understory score output 8 · clout 63
Aug 2025 Jul 2026
  • output, commits & releases
  • clout, star velocity

output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →

covered in

  • PR#28 2026-02-25 on the radar

    Lightweight text-to-speech for local AI workflows

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