---
id: "2025-08-08-meta-acquires-waveforms"
url: "https://postcutoff.com/e/2025-08-08-meta-acquires-waveforms/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2025-08-08"
date_precision: day
category: business
importance: 2
confidence: high
status: [Confirmed]
sources: 4
editor: human editor
human_review: null
version: "2026-10-04"
---

As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2025-08-08-meta-acquires-waveforms/

# Meta acquires WaveForms AI, the voice startup of ex-OpenAI GPT-4o voice lead Alexis Conneau

On 2025-08-08 Meta acquired WaveForms AI, a speech startup founded in 2024 by Alexis Conneau (who worked on GPT-4o's Advanced Voice Mode at OpenAI) and Coralie Lemaitre. WaveForms had raised $40M at a $200M valuation to pursue a "Speech Turing Test" and "emotional general intelligence". The founders joined Meta Superintelligence Labs. Their work surfaced a year later as the Muse realtime voice and avatar stack at Connect 2026.

## Key facts
- Reported by The Information on 2025-08-08; confirmed to TechCrunch; price not disclosed
- WaveForms raised $40M (Andreessen Horowitz-backed) at a $200M valuation (Dec 2024)
- Founders Alexis Conneau (ex-OpenAI GPT-4o/Advanced Voice Mode, ex-Meta FAIR) and Coralie Lemaitre joined Meta Superintelligence Labs
- Part of Meta's summer-2025 MSL talent push; Meta had bought voice startup PlayAI in July 2025
- Sept 2026: Conneau, now a Meta Distinguished Scientist, introduced Muse Realtime Avatar (~870 ms latency), built on Muse Realtime Voice

## What happened

Meta bought a months-old voice startup mainly for its team. Conneau had helped build GPT-4o's native voice mode at
OpenAI, so the deal brought OpenAI voice experience into Meta's new superintelligence lab.

## Why it matters

It is the origin of Meta's 2026 realtime voice and avatar models (Muse Realtime Voice / Avatar). It was also part of the
2025 wave of acqui-hires in which frontier labs bought small teams instead of licensing their technology.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): in its training data
- Claude Opus 5.5 (training cutoff June 2026): in its training data
- Gemini 4 Hydrogen (training cutoff March 2026): in its training data
- Grok 4.7 (training cutoff May 2026): in its training data

## Sources

1. [Alexis Conneau on X - introducing Muse Realtime Avatar (2026-09-24)](https://x.com/alex_conneau/status/2103143665577423347) (x.com, official)
2. [TechCrunch - Meta acquires AI audio startup WaveForms](https://techcrunch.com/2025/08/08/meta-acquires-ai-audio-startup-waveforms/) (techcrunch.com, press)
3. [SiliconANGLE - Meta reportedly acquires voice AI startup WaveForms](https://siliconangle.com/2025/08/08/meta-reportedly-acquires-voice-ai-startup-waveforms/) (siliconangle.com, press)
4. [Latent Space AINews - Meta Connect 2026 (WaveForms work surfaced at Connect)](https://www.latent.space/p/ainews-meta-connect-2026-muse-glasses) (latent.space, press)

## Changes

- 2026-09-29 (filed): Created

## Related

- 2026-09-23: [Meta Connect 2026: VR Glasses, Ray-Ban Meta Gen 3, camera-free audio glasses and Muse everywhere](https://postcutoff.com/e/2026-09-23-meta-connect-2026/index.md)
- 2026-09-08: [Meta launches Muse, a free consumer personal AI agent](https://postcutoff.com/e/2026-09-08-meta-muse-personal-agent/index.md)
- 2025-07-13: [Meta acquires voice-AI startup PlayAI (PlayHT)](https://postcutoff.com/e/2025-07-13-meta-acquires-playai/index.md)
- Archived: 1 post, listed in https://postcutoff.com/e/2025-08-08-meta-acquires-waveforms/index.json