Alternatives to Voice Agents

Inworld AI delivers realtime text-to-speech and speech-to-speech inference for consumer voice agents, with TTS-2 Flash hitting 50ms to

ElevenLabs AI voice generator turns text into speech in 90+ languages, with cloning, dubbing, music and voice agents.

Smallest.ai is a developer-first voice AI platform for realtime TTS, STT, speech-to-speech and telephony agents on one API bill.

SkipCalls is a 24/7 AI receptionist that answers your existing business line, books jobs, and texts you every call summary.

Modular LLM agentic AI platform that automates enterprise contact centers across voice and text in Swiss-German, German, French and Italian.

Voice AI that answers restaurant phone, drive-thru, text and kiosk orders in your brand's voice.

PolyAI builds enterprise voice AI agents that resolve complex customer calls end to end in 40+ languages.

Synthflow AI runs enterprise voice AI agents on its own telephony network for automated phone calls at scale.

Decagon builds enterprise AI concierge agents for chat, voice, and email that resolve customer support without engineering sprints.

Deploy low-latency conversational AI voice agents across 90+ languages in minutes.

Enterprise voice AI agents with in-house telephony, contracts starting at $30,000 a year

Open-source, self-hostable voice AI platform for building speech-to-speech agents with your own model keys.

No-code AI voice agents for French healthcare and SMB phone lines, handling inbound and outbound calls in 30+ languages.

Ten Framework is an open-source framework for building real-time voice AI agents with modular STT, TTS, and NLU pipelines you host yourself.

AI voice and chat support agents that chase resolution rate, escalation rate, or CSAT instead of just answering calls.

Insurance-native AI agents that resolve FNOL, claims, and service calls end-to-end inside Guidewire or Duck Creek.

DeepCura is a clinician-supervised AI medical scribe platform that runs seven clinical AI agents for $129/mo per provider.

AgentZee is a no-code WhatsApp sales platform with AI chatbots, outbound voice calling, and broadcast campaigns from ₹1,000/month.

Inworld delivers realtime text-to-speech, speech-to-text, and open-model inference on one API for consumer voice apps.

EliseAI runs agentic AI for property management and healthcare — answering prospects, residents, and patients across SMS, email, chat, and

Slang AI is a voice AI phone host for restaurants that answers calls 24/7, books reservations and routes VIPs to staff.

Free AI chat that turns prompts, PDFs, audio and images into editable mind maps, flowcharts and UML diagrams.

Beckon by Stellar is an AI voice assistant that cold-calls every career-school inquiry within 60 seconds and books the appointment.

Neocortex is a node-based editor and SDK for building voice-aware, stateful AI NPCs in Unity without writing LLM plumbing yourself.

Real-time text-to-speech and streaming speech-to-text models plus Managed Agents for production voice agents.

Vapi is an API-first platform for building voice AI agents that run real inbound and outbound phone calls at sub-500ms latency.

Build, test, and scale real-time voice, video, and robotics agents on an open-source framework with published per-minute inference pricing.

Voctiv runs AI call and message handlers that qualify leads, block spam, and book appointments 24/7.

Millis AI (by TMate Inc.) builds LLM voice agents you can deploy to phone numbers, web, mobile or desktop with claimed 500–600ms latency.

MIT-licensed Python framework for building real-time voice agents you host yourself, with phone-call support via the Vocode API.