AI · alternatives · 2026
24 alternatives to 1-844-HEY-VAPI – voice AI platform for developers
Hey HN, I’m Jordan, founder of Vapi. For the past 1.5 years, we've been building voice infrastructure designed to help developers easily create, test, and deploy voice agents. We’re everything between raw models (like the realtime API) and end-users interacting with voice agents over telephony or within applications. We’ve been around for about 1.5yrs. Vapi was born out of a personal frustration—I wanted to build my own voice agent but found existing solutions extremely limited. Back then, there were only a handful of voice AI startups. Since March 2024, we've witnessed a Cambrian explosion…
Vapi is a voice infrastructure platform that enables developers to build, test, and deploy voice agents. It sits between raw AI models and end-users, handling voice interactions across telephony and applications. The… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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We want to make interactions feel warmer and human via audio - just like chatting with a friend. We're making voice AI's as simple, reliable and accessible as any other API in your stack.
2024 · blog.vapi.ai · its alternatives →
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The open-source framework for real-time AI voice
2025 · videosdk.live · its alternatives →
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I've been obsessed for the past ~year with the possibilities of talking to LLMs. I built a bunch of one-off prototypes, shared code on X, started a Meetup group in SF, and co-hosted a big hackathon. It turns out that there are a few low-level problems that everybody building conversational/real-time AI needs to solve on the way to building/shipping something that works well: low-latency media transport, echo cancellation, voice activity detection, phrase endpointing, pipelining data between models/services, handling voice interruptions, swapping out different…
2024 · github.com · its alternatives →
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NovaVoice▲578Hey HN, Today I’d like to show what I’ve recently built with my 2 friends. We’ve called it Nova. The idea is to built all-purpose AI Voice Assistant, which is able to interact with mail, to-do apps, messengers and socials, task trackers, apps like UberEats, Notion and some other daily apps. How we decided to work on it: We’ve recently read YC Request for startups Summer25 and were inspired by the idea of AI Voice Assistant for Mail by YC partner Tyler Bosmeny. What we’ve got: We’ve gone a bit further than Assistant for mail only and connected Gmail, Todoist, Google Calendar, and…
Apr 2026 · novavoice.app · its alternatives →
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Luke from ElevenLabs here. We just released Scribe Realtime v2, our new real-time Speech to Text model. We rebuilt it from the ground up around a new architecture that uses predictive transcription – it anticipates the next likely word before it’s spoken. That makes it both fast (around 150 ms latency) and highly accurate. Scribe v2 Realtime outperforms every low latency transcription model across 30 commonly used EU and Asian languages – 93.5% accuracy, compared to Gemini 2.5 Flash (91.4%), GPT-4o MiniTranscribe (90.7%), and Deepgram Nova 3 (85%). It supports 90+ languages including…
2025 · elevenlabs.io · its alternatives →
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Vocera▲582Launch voice agents faster with simulation & monitoring
2024 · cekura.ai · its alternatives →
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VoiceOps▲401the #1 AI platform for analyzing enterprise voice
2017 · voiceops.com · its alternatives →
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The first AI-powered voice assistant with privacy
2017 · snips.ai · its alternatives →
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Hey, I created this platform to help people get started creating their own Telephone Voice AI Agency using Vapi.ai. right now agencies offer their clients voice AI agents that can do customer service, take appointments and do cold outreach over the phone with Vapi but they don't have a way to give their clients insights into how the agents are performing, what their doing and bill their clients based on usage. that's why I created this platform it was a problem I was having myself when I was looking into creating a product on top of Vapi AI
2025 · telezen-ai.com · its alternatives →
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I built a voice agent from scratch that averages ~400ms end-to-end latency (phone stop → first syllable). That’s with full STT → LLM → TTS in the loop, clean barge-ins, and no precomputed responses. What moved the needle: Voice is a turn-taking problem, not a transcription problem. VAD alone fails; you need semantic end-of-turn detection. The system reduces to one loop: speaking vs listening. The two transitions - cancel instantly on barge-in, respond instantly on end-of-turn - define the experience. STT → LLM → TTS must stream. Sequential pipelines are dead on arrival for natural…
Mar 2026 · ntik.me · its alternatives →
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the full stack for those curious: brain (gpt-4o + trained on some notes) || orchestration (vapi)|| voice (elevenlabs)|| hosting (vercel), database (supabase)|| some design inspo from delphi || vibe coding via WisprFlow + cursor/composer ||
2025 · parthai.vercel.app · its alternatives →
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Vogent Voicelab▲171Hi HN! Voicelab is an API for optimized inference of top open-source TTS models. CSM-1B and Orpheus are the currently supported models, but we’re adding Dia, Chatterbox, Kokoro, and more in the next couple of weeks. While new ultra-realistic open-source voice models come out every month, most people still use one of a couple of closed-source providers. The reason is that these research previews can lack production-readiness; their inference stacks are usually not amenable to running things scalably (i.e. only one concurrent stream per GPU), and the public weights can generate speech of…
2025 · vogent.ai · its alternatives →
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Chikka▲444Uncover user insights with intelligent AI voice interviewer
2025 · chikka.ai · its alternatives →
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Chert▲210Vapi for FaceTime: AI video agents in a few lines
Aug 2026 · trychert.com · its alternatives →
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Bringing the power of Grok Voice to all developers
Dec 2025 · x.ai · its alternatives →
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Research teams trust. Conversations customers love.
2025 · getperspective.ai · its alternatives →
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Vocao.ai▲178Speak naturally with AI to boost your language fluency
2025 · vocao.ai · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →