Deepgram Buys Daily, Maker of Open-Source Pipecat Voice Framework

Deepgram, a voice AI company that reached unicorn status earlier this year with a $130 million Series C round, announced on Thursday it is acquiring Daily, the maker of one of the most popular open-source voice AI frameworks, Pipecat. The companies did not disclose the deal amount, but they committed to keeping Pipecat open-source.

The move lands in a sector consolidating fast. Voice AI has drawn heavy investment on both the model side, where ElevenLabs, Gradium and Fish Audio have raised millions, and the infrastructure side, where LiveKit and Vapi closed multi-million-dollar rounds this year. Deepgram is now the latest player to buy rather than build.

What does Pipecat actually do?

Pipecat manages voice and video streams alongside other pipeline components — speech-to-text (STT), large language models and text-to-speech (TTS) models — while reducing latency. Daily itself provides hosted infrastructure for voice and video calls of any kind. For Deepgram, the deal offers a deeper foothold in real-time voice and video infrastructure, plus a path beyond voice into other real-time formats.

The two companies share history. Both were in the same Y Combinator batch in 2016. Daily has raised over $62 million to date from investors including Tiger Global, Highfield Capital, Nat Friedman, Lachy Groom and Kevin Weil, according to PitchBook data.

Kwindla Kramer, Daily's co-founder, said the framework emerged organically. Around the time GPT-4 launched, Daily began experimenting with AI-to-human communication over voice and text, which eventually produced Pipecat. He said the company had received plenty of acquisition interest, but Deepgram CEO Scott Stephenson's pledge to keep Pipecat open-source forever — and a matching engineering culture — decided the matter.

Why keep it open-source?

Kramer framed openness as strategy, not philanthropy. Daily's team will keep the freedom to work on different parts of the stack within a larger organization.

"Scott was super committed to Pipecat being open-source and vendor-neutral forever. I think there is both a personal commitment and commercial driver there. If you sit in the middle of an ecosystem that's growing very fast, and have many parts of that ecosystem that are genuinely the best from your company, then everything being as open as possible is like a commercial advantage," Kramer told TechCrunch.

Stephenson said Deepgram had wanted to work in open source for a long time and identified agent orchestration as the right entry point, which drove the decision to partner with Daily. His stance is notably non-proprietary: he wants developers using the best models for their use case, even when those are not Deepgram's.

"We want to open up the ecosystem so everybody can build voice agents. It's great if you're using Deepgram models, but I want you to be using the best models for your use case. And if Deepgram notices that we have some ground to catch up on in a certain area for our own models and products, that's great. We want you to use partners, and then we'll also work on becoming better in those areas," Stephenson said.

What comes next?

Stephenson said the acquisition lets developers build agents with expressivity and end-to-end speech systems by plugging in different models and a context bus that connects all parts. The bet rests on Pipecat as general infrastructure, not a narrow voice tool.

"We never thought about Pipecat as a voice toolkit. We thought about it as the toolkit we needed to build this new kind of AI-native software. Because of where we came from, we just always assumed real-time," Kramer said.

Alongside the deal, Deepgram is launching the Real-Time Context Standard (RCS), an open protocol for voice agents co-developed with the Pipecat team. The protocol defines metadata such as context from the audio — a whisper, for instance — instructions for a language model on how it can use those signals, and guidance on how the response should sound.

The caveat: the deal terms remain undisclosed, and open-source commitments survive only as long as commercial incentives hold. Still, with RCS and Pipecat under one roof, Deepgram now owns the orchestration layer that routes traffic across competing models — a strong position if the voice agent ecosystem keeps growing.