VibeVoice: Open-source frontier voice AI

github.com

354 points by tosh 21 hours ago


steinvakt2 - 19 hours ago

This is not a new model. Also, it hallucinates a lot. Also, it's very heavy and slow in inference. It's also bad in multilingual.

Edit: I'm talking purely about speech to text (STT). Not sure about the other things this can do.

maxloh - 19 hours ago

I think we should stop calling this type of models open source. They are indeed "open weight." The training code is proprietary and never revealed.

https://github.com/microsoft/VibeVoice/issues/102

isodev - 16 hours ago

I think in this category, Voxtral by Mistral is a lot better. It also happens to be small enough to run on webGPU https://huggingface.co/spaces/mistralai/Voxtral-Realtime-Web...

ipotapov - 2 hours ago

I built speech-swift, which focuses on on-device speech processing like VibeVoice, but specifically leverages Apple Silicon's capabilities for ASR, TTS, and VAD without cloud dependency. Our ASR supports 52 languages with a real-time factor of 0.06. https://soniqo.audio/benchmarks

pluc - 19 hours ago

Interesting story about this repo/product/author by cybersecurity researcher Kevin Beaumont: https://cyberplace.social/@GossiTheDog/116454846703138243

embedding-shape - 20 hours ago

Isn't this project the one Microsoft published but then soon after pulled it for security/safety reasons? What has changed since then?

aqme28 - 19 hours ago

Interesting to see "vibe" enshrined by the likes of Microsoft as an AI product word.

CubsFan1060 - 20 hours ago

Great post last night from Simon: https://simonwillison.net/2026/Apr/27/vibevoice/

Anonyneko - 19 hours ago

You have selected Microsoft Sam as the computer's default voice.

ryukoposting - 19 hours ago

Holy moly, a Microsoft AI product that isn't named Copilot!

podgietaru - 20 hours ago

So we've really just settled on Vibe as the verb for AI then?

xnx - 18 hours ago

Still waiting for the open weights model that conclusively beats the multi-year old Whisper in accuracy, features, and performance.

triage8004 - 15 hours ago

Surprised it wasn't called Copilot Voice

chaosprint - 18 hours ago

Microsoft Store App Vibing.exe Accused of Harvesting Screens, Audio, and Clipboard Data:

https://cyberpress.org/microsoft-store-app-vibing-exe-accuse...

mberg - 17 hours ago

I've been using VibeVoice's ASR (speech to text) model quite intensively for the past month and have found it to be a lot more reliable and out-of-the box functional then Whisper, parakeet and other models. The fact that is has diarization built into to the model is a huge win in my book. Without that you have to run a different model just for that which adds significantly to the overall processing time vs VibeVoice which gives you reliably great results. Big fan.

vijgaurav - 13 hours ago

The 60-minute single-pass transcription is the part that actually matters. Most ASR models chunk audio and you lose speaker continuity across boundaries. If the diarization actually holds up on hour-long recordings without drifting, thats a real solve for podcast and meeting transcription workflows.

vicchenai - 8 hours ago

the built-in diarization is the one thing that actually caught my attention here. running whisper + pyannote separately is a pain for long recordings and the speaker continuity breaks at chunk boundaries. if this handles it in a single pass that's a real workflow improvement, regardless of how the raw accuracy benchmarks compare

- 18 hours ago
[deleted]
frangonf - 19 hours ago

I took a look into local options for ASR and diarization some months ago, I missed that VibeVoice now has this feature.

My conclusions back then (which only came from a shallow research on the topic and 0 real experience mind you) was that Whisper + Pyannote was the "stable" approach.

Have the VibeVoice, Voxtral, Qwen or the Nemo solutions caught up in segmentation and speaker recognition?

Void_ - 19 hours ago

I the past month or so, I added 2 models to my app Whisper Memos (https://whispermemos.com):

- Cohere Transcribe (self hosted)

- Grok Speech To Text (they provide an API, only $0.10/hr!)

They are both excellent. I'm not sure about this one. Would you like to see it in a consumer speech to text app?

JumpCrisscross - 19 hours ago

What’s the current state of the art, for each of training locally and in the cloud, for learning my voice?

Mobius01 - 18 hours ago

Microsoft has historically made poor choices in product naming, but this has to be a new low.

dragonfax - 16 hours ago

Shouldn't it be called something like "Copilot Voice"?

lizardking - 11 hours ago

Microsoft continues to be completely incapable of coming up with good names for their products and services

yayadarsh - 15 hours ago

Someone tell me if this is better or worse than Parakeet

low_tech_punk - 13 hours ago

When mixing languages, why does the English have Chinese accent and Chinese have English accent? Is it a feature or bug?

threepts - 15 hours ago

Explains most of the shit they have pushing with Windows 11. Perhaps all that bloatware was VibeVoiced too.

BlastBash192 - 19 hours ago

Maybe Microsoft’s real strength was never making the best model, it was knowing you don’t need to, as long as you own the platform everyone builds on.

solomatov - 17 hours ago

It would have been better if they provided not just weights, but also some frontend where it is usable as is.

isolay - 14 hours ago

Seriously, VibeVoice? Microslop really has a penchant for the worst names.

mistic92 - 19 hours ago

For me its giving me very poor results

khimaros - 18 hours ago

looks like this offers ASR support in GGUF https://github.com/CrispStrobe/CrispASR -- haven't tested

nickandbro - 16 hours ago

This is a very good model, but can it be run on the web?

decide1000 - 12 hours ago

Isn't voxtral much better?

unixhero - 15 hours ago

What the do they mean by frontier voice

yapyap - 8 hours ago

Sounds like Msft wanted to coast on the “vibecode” vibe popularity?

walthamstow - 20 hours ago

Seems quite heavy for a STT model, Parakeet and Whisper are much smaller and perform great for quick dictation and transcription of longer files. I guess that's due to additional accuracy and speaker diarisation?

The TTS example clip in the repo of 'spontaneous singing' is creepy as fuck

Zopieux - 18 hours ago

English only?

ChrisArchitect - 18 hours ago

Previously:

Sept 2025 https://news.ycombinator.com/item?id=45114245

starkeeper - 18 hours ago

Microsoft is famous for choosing terrible names but how could they be this terrible.

simjnd - 14 hours ago

What a terrible name

villgax - 16 hours ago

lol they rug-pulled the 7B for our own safety some months ago

matpb - 6 hours ago

[flagged]