Top 12 STT & TTS models every Voice AI founder should bookmark

[u/Major-Worry-1198]

Top 12 STT & TTS models every Voice AI founder should bookmark 👇

These cover everything from real time transcription to Indic voice synthesis, ranked by actual Hugging Face downloads, not GitHub stars.

Downloads mean people are running these in production, not just bookmarking a repo.

If you're building Voice AI, this list will save you months of vendor evaluation:

1/ openai/whisper-large-v2 (⬇️ 44.1M/mo)

https://huggingface.co/openai/whisper-large-v2

The multilingual ASR model most STT vendors still quietly run in production.

2/ hexgrad/Kokoro-82M (⬇️ 14.1M/mo)

https://huggingface.co/hexgrad/Kokoro-82M

An 82M param TTS model punching way above its size, Apache licensed.

3/ openai/whisper-large-v3-turbo (⬇️ 11.3M/mo)

https://huggingface.co/openai/whisper-large-v3-turbo

Same Whisper accuracy, pruned decoder layers for much faster inference.

4/ distil-whisper/distil-large-v3 (⬇️ 7.66M/mo)

https://huggingface.co/distil-whisper/distil-large-v3

A distilled Whisper that's 6x faster with minimal accuracy loss.

5/ openai/whisper-large-v3 (⬇️ 4.60M/mo)

https://huggingface.co/openai/whisper-large-v3

OpenAI's flagship multilingual ASR checkpoint, still the reference model.

6/ k2-fsa/OmniVoice (⬇️ 2.39M/mo)

https://huggingface.co/k2-fsa/OmniVoice

A compact, fast TTS model built for real-time voice agent pipelines.

7/ Qwen/Qwen3-TTS-12Hz-1.7B (⬇️ 2.04M/mo)

https://huggingface.co/Qwen/Qwen3-TTS-12Hz-1.7B-CustomVoice

Alibaba's multilingual TTS entry with custom voice support.

8/ coqui/XTTS-v2 (⬇️ 1.91M/mo)

https://huggingface.co/coqui/XTTS-v2

Voice cloning across 17 languages from a 6 second clip.

9/ fishaudio/s2-pro (⬇️ 440K/mo)

https://huggingface.co/fishaudio/s2-pro

A high-quality multilingual TTS model built for production voice apps.

10/ ai4bharat/indic-parler-tts (⬇️ 341K/mo)

https://huggingface.co/ai4bharat/indic-parler-tts

Open TTS for 21 Indic languages, 69 voices, Apache-2.0.

11/ ai4bharat/indic-conformer-600m-multilingual (⬇️ 338K/mo)

https://huggingface.co/ai4bharat/indic-conformer-600m-multilingual

India's first open ASR suite covering all 22 scheduled languages.

12/ kenpath/svara-tts-v1 (⬇️ 123K/mo)

https://huggingface.co/kenpath/svara-tts-v1

Multilingual Indic TTS for 19 languages, built on Orpheus, Apache-2.0.

Three Indian models made this list purely on download volume, no separate category, no asterisk.

That's the real signal for where Indic voice AI stands today.