Ultravox.ai

Speech-native voice AI agents platform

Visit Official Site ↗

🤖 Comparing AI agents?

See how this agent ranks in our Best AI Agents guide, or browse the full AI Agents category:

Best AI Agents — ranked guide →All AI Agents →

About Ultravox.ai

Ultravox is a realtime voice AI platform built on a speech-native model that processes audio directly instead of transcribing to text first, preserving tone and cutting latency. Developers build voice agents that speak, listen and interact in real time through REST APIs and SDKs for web and mobile, with built-in telephony integrations and tools for scaling agents. The platform is built on open-weight models and includes a neural voice activity detection model for natural turn-taking.

Ultravox.ai key facts

Category: AI Agents
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: voice ai, api, realtime, speech
Official site: ultravox.ai

About the AI Agents category

Autonomous AI agents that plan and execute tasks for you — general agents, AI browsers, AI employees, app builders, and coding agents. The AI Agents category on Tools Hub currently lists 176 tools. Alongside Ultravox.ai, it includes Manus, Genspark, ChatGPT Agent, Devin.

FreemiumAI Agentsvoice-aiapirealtimespeech

More in AI Agents

Comparing tools in the AI Agents category? These related listings are worth a look: Manus — The hands-on AI agent for real tasks; Genspark — All-in-one AI workspace Super Agent; ChatGPT Agent — ChatGPT's built-in agent mode.