Alternatives to Ultravox.ai
Ultravox.ai is a Agentic AI tool: ultravox.ai (formerly Fixie.ai) is building human-like voice AI agents and models for natural, real-time communication. Here are the 6 closest alternatives, compared on pricing, features and what real users say.
Ultravox.ai profileOpen source alternatives (16)More Agentic AI alternatives
The 6 closest alternatives to Ultravox.ai
Ranked by how closely each one overlaps with Ultravox.ai on category and features.
- 1
ElevenLabs AI Music Generator allows users to quickly create high-quality, customized music tracks in any genre or style, with or without vocals, in multiple languages using simple text prompts.
- Studio-grade audio,
- Multilingual,
- Narrative Tone Sync
- Pricing:
- Contact for pricing
- Visitor rating:
- 5/5(1)
- 2
Deepgram is an enterprise voice AI platform providing APIs for speech-to-text, text-to-speech, and voice agents, used by over 200,000 developers to build voice-first products.
- Voice Agent API,
- Speech to Text API,
- Text to Speech API
- Pricing:
- Contact for pricing
- 3
Cresta
Agentic AIGenerative AI for contact centers.
- Pricing:
- Contact for pricing
- Reddit:
- 25% positive(4 mentions)how we count
- 4
Retell AI
Agentic AIVoice AI agent platform handling more calls per second than the US 911 system, $60M ARR with a 35-person team.
- AI Voice Agent Platform,
- Auto-Sync Knowledge Base,
- Powerful Call Transfer
- Pricing:
- Contact for pricing
- 5
Sierra helps businesses build better, more human customer experiences with AI agents that can understand, reason, and take action across various channels.
- AI Agent Deployment,
- Real-time Customer Support,
- Voice Communication Integration
- Pricing:
- Contact for pricing
- 6
Solidroad
Agentic AIAI QA & training platform that reviews 100% of customer conversations to increase CSAT.
- 100% Conversation Review,
- Tailored Training Simulations,
- AI Agent Refinement
- Pricing:
- Contact for pricing
Community sentiment is our own count of how positive, negative or neutral the discussions we track about each tool are, across the subreddits where its users actually post. It is not a star rating and it is not a review score. Pricing reflects each vendor's public plans and can change, so check the provider for the current price.
The 20 closest Agentic AI companies to Ultravox.ai
- Website ElevenLabs79AILondon, United Kingdom$1.6B
ElevenLabs AI Music Generator allows users to quickly create high-quality, customized music tracks in any genre or style, with or without vocals, in multiple languages using simple text prompts.
- Website Deepgram66NeocloudSan Francisco, United States$202.1M
Deepgram is an enterprise voice AI platform providing APIs for speech-to-text, text-to-speech, and voice agents, used by over 200,000 developers to build voice-first products.
- Website
AssemblyAI50Voice AISan Francisco, United States$112.0MAI models for speech-to-text, summarization, and understanding audio content.
- Website Cresta66Agentic AIUnited States$125.0M
Generative AI for contact centers.
- Website Retell AI63Agentic AISan Francisco, United States$14.0M
Voice AI agent platform handling more calls per second than the US 911 system, $60M ARR with a 35-person team.
- Website Sierra62Agentic AIUnited States$1.6B
Sierra helps businesses build better, more human customer experiences with AI agents that can understand, reason, and take action across various channels.
- Website Solidroad60Agentic AISan Francisco, United States$39.2M
AI QA & training platform that reviews 100% of customer conversations to increase CSAT.
- Website
Aisera47Agentic AIUnited States$90.0MAisera delivers an Agentic AI platform leveraging artificial intelligence and machine learning to automate and transform enterprise service desk operations across IT, HR, finance, legal, facilities, and customer service domains.
- Website
ActiveCampaign60Agentic AIChicago, United States$50.0MCustomer experience automation platform with email marketing, CRM, and marketing automation.
- Website
Frontline40Agentic AISan Francisco, United StatesEnterprise-grade AI agents that automate sales, support, HR, and collections processes via WhatsApp.
- Website
Lyzr AI57Agentic AISan Francisco, United States$100.0MLyzr AI provides a full-stack agent framework and infrastructure for enterprises to build and manage autonomous AI agents.
- Website
Truffle AI (YC W25)56Agentic AISan Francisco, United States$500.0MTruffle AI provides an AI agent development platform that enables businesses to build, customize, and deploy AI agents to automate and unify workflows in minutes.
- Website
LangGraph53Agentic AISan Francisco, United States$25.0MLangGraph is an open-source framework for building, managing, and deploying long-running, stateful agents as graphs.
- Website
Ema Unlimited53Agentic AIPalo Alto, United States$36.0MEma is a Universal AI Employee platform that provides secure, compliant, and conversational AI agents for enterprises, automating complex workflows across various business functions.
- Website
Sema4.ai51Agentic AISan Francisco, United States$80.0MEnterprise AI agent platform for building, operating, and scaling secure AI agents to automate complex business processes.
- Website
Arthur51Agentic AISan Francisco, United States$10.0MOne control plane for trustworthy enterprise AI — performance, observability, guardrails, and governance across the full lifecycle.
- Website
SoundHound AI49Agentic AISanta Clara, United States$587.7MVoice and agentic AI platform enabling businesses to create conversational experiences.
- Website
Forethought67Artificial IntelligenceSan Francisco, United States$25.0MAI-powered customer service automation platform using agentic AI to resolve customer inquiries.
- Website
PolyAI28Agentic AIUnited KingdomPolyAI is a leading provider of enterprise AI agents for customer service, specializing in creating the world's most lifelike conversational voice assistants that resolve millions of customer inquiries.
- Website
Propane41Agentic AISan Francisco, Denmark$1.2MPropane is building the operating system for AI-native Customer Intelligence
Showing the 20 closest matches. See the rest on the Ultravox.ai profile.
Ultravox.ai alternatives: common questions
What are the closest alternatives to Ultravox.ai?
ElevenLabs, Deepgram, Cresta are the closest alternatives to Ultravox.ai by feature overlap and category. Each one is compared above on pricing, features and community sentiment.
Compare Ultravox.ai head to head
Side by side on what each one does, what it costs, and what real users report.