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Ultravox

Speech-native voice AI platform with developer-friendly APIs for building conversational agents.

Venture Funded$12MSeries AAmplify PartnersBloomberg Beta

multi-agent systemsworkflow automationenterprise AIscalable AI

About

Ultravox is a rebrand of Fixie AI (as indicated by the copyright notice). It is a voice AI platform built by a research lab and product company dedicated to real-time voice AI experiences. The platform uses a speech-native model that processes audio directly without converting to text first, preserving paralinguistic signals like tone, cadence, and pitch. The Ultravox v0.7 model scores 91.8% on Big Bench Audio without reasoning and 97% with thinking enabled. The platform includes developer-friendly REST APIs, SDKs for web and mobile, built-in telephony integrations, and pricing starting at 5¢ per minute for up to 5 concurrent calls. Ultravox is built on open weight models shared on Hugging Face.

Read from ultravox.ai on 2026-08-26. We describe what the vendor states; we do not audit it.

Enterprise Readiness

from cataloged data

62/100 · Established

Security & ComplianceNot disclosed

No compliance certifications listed

Deployment FlexibilityStrong

Flexible deployment: Cloud, Hybrid, Self-Hosted

Integration DepthStrong

8 documented integrations

Proven AdoptionPartial

5 documented use cases

Company MaturityStrong

Founded 2022 · Series A

Composite of public compliance, deployment, integration, adoption, and company signals. “Not disclosed” reflects gaps in available data, not a vendor deficiency.

Independently sourced

Pulled directly from regulator filings and platform APIs. No vendor or editorial input.

Activity classifier

Active

last GitHub commit 29d ago

GitHub API2026-05-27

fixie-ai

Open source product· 4.6k★· MIT· active 4mo ago

TypeScript · Python · JavaScript · Swift

cooling · +73★ (+1.6%) 30d

npm registry

fixie

v7.0.15· MIT· released 2.6y ago

OSV vulnerability feed2026-08-24

No known advisories

Enterprise Use Cases

Automated customer support workflows

Cross-departmental task orchestration

Intelligent data aggregation and reporting

Real-time decision support

Compliance monitoring automation

Integrations

SlackSalesforceMicrosoft TeamsZapierAWSGoogle CloudAzureJira

How Ultravox compares

Tool	Readiness	Pricing	Deployment	Compliance	Integrations
Ultravox	62 · Established	Enterprise	Cloud, Hybrid, Self-Hosted	—	8
Imbue AI Agents	Not scored	Enterprise	Cloud, On-Premise, Hybrid, Self-Hosted	—	8
CrewAI	Not scored	Enterprise	Cloud, On-Premise, Hybrid, Self-Hosted	—	8
Dust AI	Not scored	Enterprise	Cloud, Self-Hosted	—	8

Peers from the same category, ranked by Enterprise Readiness. Readiness is a composite of cataloged compliance, deployment, integration, adoption, and company signals.

Frequently Asked Questions

What is Ultravox used for?

Ultravox is speech-native voice AI platform with developer-friendly APIs for building conversational agents. It is commonly used for automated customer support workflows, cross-departmental task orchestration, intelligent data aggregation and reporting, and real-time decision support.

Is Ultravox free, and how is it priced?

Ultravox uses enterprise pricing, typically a custom quote based on seats, usage, and requirements. Contact the vendor for a quote.

How can Ultravox be deployed?

Ultravox supports Cloud, Hybrid, and Self-Hosted deployment. On-premise and self-hosted options support data-residency and air-gapped requirements.

What does Ultravox integrate with?

Ultravox documents 8 integrations, including Slack, Salesforce, Microsoft Teams, Zapier, AWS, and Google Cloud.

When was Ultravox founded?

Ultravox was founded in 2022 and has raised $12M in funding.

Is Ultravox enterprise-ready?

Based on cataloged data, Ultravox has an Enterprise Readiness score of 62/100 (Established tier), derived from its compliance, deployment, integration, adoption, and company-maturity signals.

Quick Facts

PricingEnterprise

DeploymentCloud, Hybrid, Self-Hosted

Founded2022

Funding$12M

CategoryAI Agents & Automation

Procurement

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