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AI-powered speech-native
Updated
Ultravox is a speech-native AI agent offering a speech-native model and platform for real-time voice agents that understands audio directly. Founded in 2022 and based in Seattle, USA, Ultravox helps developers and enterprises automate speech-native work and get results faster.
Ultravox takes voice as input and produces voice and text. It combines large language models with task-specific AI, with the vendor managing prompts, models and updates. It connects to tools such as Twilio, WebRTC, OpenAI and Deepgram, so the agent works inside existing workflows.
Ultravox is built for developers and enterprises. It suits teams that want speech-native model and real-time calls without adding headcount, while keeping people in control of review and final decisions.
Ultravox is often compared with Retell AI. Ultravox stands out for speech-native model and open-weight model. The right choice depends on your workflow, integrations and budget, so compare both on a real task.
Pricing Model
Subscription
Starting Price
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Free Options
Free version, Free trial
Try Ultravox with limited usage.
Ultravox for individuals and growing teams. See ultravox.ai for current pricing.
Ultravox for larger organizations with security and admin needs. Contact sales for a quote.
| Feature | Free | Pro Popular | Enterprise |
|---|---|---|---|
| Speech-native model | , | ||
| Limited monthly usage | , | , | |
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| Real-time calls | , | , | |
| Higher usage limits | , | , | |
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| Email support | , | , | |
| Everything in Pro | , | , | |
| Open-weight model | , | , | |
| Telephony integration | , | , | |
| SSO and admin controls | , | , | |
| Dedicated support | , | , |
Other
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API Types
SDK Availability
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Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
