Alternatives to Slang.ai

Upfirst is an AI phone receptionist that answers calls 24/7, qualifies callers, and books appointments into your calendar.

NextPhone is an AI receptionist that answers business calls in two rings and books the appointment on the call

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

AI dental front-office platform where Sophia answers calls, books visits, verifies insurance, and writes it all back to your PMS.

Myna builds AI voice and SMS agents that answer calls, qualify leads and book appointments for service businesses.

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

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

Beside is an AI receptionist and back-office agent that answers every call and books the job for local businesses.

Open-source voice AI platform for self-hosted speech-to-speech agents with BYOK model keys.

Build voice and chat agents from a prompt in about five minutes, grounded in your own knowledge base.

Turbo voice API: one per-minute rate for LLM, STT, and TTS on production AI phone calls.

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

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

Bolna builds multilingual voice AI agents that make inbound and outbound phone calls in Hindi, Hinglish, Tamil and Telugu

AI voice agents that call, qualify and follow up on Indian real estate leads within seconds of a form submit.

No-code AI voice agents that run outbound and inbound phone calls, book meetings, and take call-time actions for you.

No-code AI voice and text agents that handle support, sales, and scheduling in 20+ languages.

Autocalls runs AI voice agents for inbound and outbound business phone calls, plus WhatsApp chat, in 100+ languages.

Vogent builds AI voice agents that dial out, navigate IVR phone trees, and handle inbound and outbound calls end to end.

Voice AI agents and copilots for pharma commercial teams — HCP engagement, patient support, and field enablement.

AI support agents for voice, chat and email that are tuned against your resolution rate, escalation rate or CSAT.

Zoronal deploys compliant AI voice agents for Indian healthcare and insurance call operations in 9+ Indian languages.

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

JustCall is a cloud phone system and AI call center platform with AI voice agents, SMS, and WhatsApp inboxes for sales and support teams.

AI phone answering for home services that books jobs, texts follow-ups, and writes back to ServiceTitan

Build real-time voice AI agents in Python with Vocode — open-source, self-hosted voice agents with swappable LLM, STT, and TTS.

AI employees, dialer, and CRM built only for Medicare and ACA agencies — priced per active policy, $0 per seat.

Zinley is an autonomous AI personal agent that answers calls, handles email, manages news, health, and follow-ups under your rules.

AI voice interview software: turn one line into a shareable interview link with spoken answers, transcripts, and extracted themes

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