About
Ultravox.ai, formerly known as Fixie.ai, is focused on developing advanced AI models and a robust stack for building and scaling human-like voice AI agents. They aim to overcome the limitations of text-based LLMs by enabling AIs to communicate naturally in real-time, handling the complexities of human conversation like interruptions and rapid exchanges. Their flagship product, Ultravox, is an open-weight speech language model that has demonstrated superior performance over competitors like OpenAI's GPT-4o Realtime and Google's Gemini 1.5 Flash in speech understanding, transcription accuracy, and speech-based question answering.
Key facts
At-a-glance profile data
- Website
- ultravox.ai
- Headquarters
- San Francisco, United States
- Founded
- 2022
- Employees
- 16
- Total funding
- $10M (Seed)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Lead investors |
|---|---|---|---|
| 1 Mar 2023 | Seed | $10M | Matt Bornstein |
Tech stack
Detected on ultravox.ai, last scanned 24 Sept 2026. Run your own scan
- Analytics
- Fathom
- CMS / Builders
- Framer
- Email provider
- Google Workspace
- Email marketing
- Adobe Marketo
- Status page
- BetterStack
Frequently asked
What does Ultravox.ai do?
They offer APIs and SDKs for deploying these AI voice agents, catering to industries such as customer support, real-time translation, and call handling.
How much funding has Ultravox.ai raised?
Ultravox.ai has raised a total of $10M in funding. The most recent round on record is Seed.
How many employees does Ultravox.ai have?
Ultravox.ai has approximately 16 people on record.