Voice AI is getting a fresh wave of attention from investors and startups in 2026. One standout company, Rime, just raised $24 million in a Series A round led by M13 Ventures. This comes after their $5.5 million seed round last May. They’re focused on solving a big problem: making voice AI work better for enterprise phone calls.
Rime’s approach is different. Instead of scraping web audio, they built a real recording studio in San Francisco. There, they collect conversational data directly. This helps them train voice models that pronounce brand names and industry terms correctly. They use a phoneme-based system to handle different accents and pronunciations. It’s all about making voice AI sound natural and accurate.
Lily Clifford, Rime’s founder, says the current voice technology still has limits. She explains that talking with voice AI feels like an improved version of old IVR systems—better voices but still not very engaging. So Rime is pushing for low latency and high reliability in a regulated environment. Their goal is to make voice AI more useful for real business calls.
Big Moves Across AI Startups
Rime’s funding is part of a bigger trend. Other AI startups also raised large rounds this year. Paris-based Gradium reopened its seed round and raised a total of $100 million, including new investment from Nvidia. Gradium launched out of stealth in December with $70 million from top investors like FirstMark Capital and Eric Schmidt. They’re opening a Bay Area office to expand their presence.
Gradium co-founder Neil Zeghidour has a strong AI background, having worked at Google Brain, DeepMind, and Facebook. Gradium is focused on voice AI as well but comes from a French AI lab called Kyutai. Their big funding shows confidence in voice tech’s future.
Massive Growth in Video and AI Agents
Video-generation startup PixVerse also made headlines. It raised $439 million in a Series C extension, pushing its valuation over $2 billion. Founded in 2023 by Wang Changhu and Jaden Xie, PixVerse already has over 150 million registered users and 15 million monthly active users. Their models include V-Series, C-Series, and R-Series world models. The company charges $4.80 per minute of video generation but keeps exact paying user numbers private.
Meanwhile, Lyzr used its own AI agent, SivaClaw, to manage its $100 million Series B fundraiser. The fundraise valued the company around $500 million. SivaClaw answered investor questions, drafted memos, and tracked investor interest. Lyzr pulled in $400 million in interest from investors in Silicon Valley, the Middle East, and the financial sector. This mix of AI-powered fundraising and product innovation is attracting serious money.
One investor, Morgan Blumberg, praised Rime’s technical approach. He said many companies focus on the orchestration or application layer, but Rime stands out for pushing the best voice model with low latency and reliability. This shows there’s more work to do in voice AI beyond just layering technology.
The AI startup scene in 2026 is vibrant, with big bets on voice, video, and AI agents. Rime’s $24 million Series A highlights that real conversation data and smart voice tuning can set a company apart. With more funding and innovation, enterprise phone calls might finally get the upgrade they need.
Based on
- Rime picks up $24M Series A to help enterprises field customer calls — techcrunch.com
- Paris-based AI voice startup Gradium raises $100M seed, backed by Nvidia | TechCrunch — techcrunch.com
- The founder of Hinge raised $18M to build a new AI dating service, Overtone | TechCrunch — techcrunch.com
- Video-generation startup PixVerse raises $439M, valuation soars past $2B | TechCrunch — techcrunch.com
- An AI agent startup just let its agent run its $100M fundraise | TechCrunch — techcrunch.com
