AI · alternatives · 2026
24 alternatives to Real-time AI Voice Chat at ~500ms Latency
Have a natural, spoken conversation with AI! Contribute to KoljaB/RealtimeVoiceChat development by creating an account on GitHub.
This is an open-source AI voice chat system designed to enable real-time conversations with minimal latency of approximately 500 milliseconds. It allows users to speak to an AI and receive spoken responses with minimal… 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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WhisperFusion builds upon the capabilities of open source tools WhisperLive and WhisperSpeech to provide a seamless conversations with an AI chatbot.
2024 · github.com · 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 →
- 3
Last year when GPT-4 was released I started making lots of little voice + LLM experiments. Voice interfaces are fun; there are several interesting new problem spaces to explore. I'm convinced that voice is going to be a bigger and bigger part of how we all interact with generative AI. But one thing that's hard, today, is building voice bots that respond as quickly as humans do in conversation. A 500ms voice-to-voice response time is just barely possible with today's AI models. You can get down to 500ms if you: host transcription, LLM inference, and voice generation all together in one place;…
2024 · fastvoiceagent.cerebrium.ai · its alternatives →
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Tighter instruction adherence in speech agents
Feb 2026 · developers.openai.com · its alternatives →
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24/7 custom AI livechat + realtime voice chatbot
2024 · chat-data.com · its alternatives →
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Pinch▲535Hey HN! I’m Christian, daily lurker and some might remember our original launch post (https://news.ycombinator.com/item?id=42935355). Today we're launching Pinch for Mac, which we believe is a step-change improvement in real-time AI translation. Our vision is to make cross-lingual conversations feel as natural as regular conversations. TL:DR During an online meeting, the app instantly transcribes and translates all audio you hear, and allows you to decide when you translate your voice and when you don't. It's invisible to others (like Granola), and works everywhere without any…
2025 · startpinch.com · its alternatives →
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Premium AI voice quality without the premium price tag.
2025 · async.com · its alternatives →
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High-quality voice clones with just 60 seconds of audio
2023 · wavel.ai · its alternatives →
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Retell AI▲296API that helps developers build human-like voice agents
2024 · retellai.com · its alternatives →
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AI Voice assistant in 3 minutes. Built for non-developers
Nov 2025 · klariqo.com · 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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Ojin▲106Talk to an AI Agent with a real face and voice, in real time
Aug 2026 · ojin.ai · its alternatives →
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TLDR: We created a personalised Andrej Karpathy tutor that can response to questions about his Youtube videos in sub 1 second responses (voice-to-voice). We do this using a voice enabled RAG agent. See later in the post for demo link, Github Repo and blog write up. A few weeks ago we released the worlds fastest voice bot, achieving 500ms voice-to-voice response times, including a 200ms delay waiting for a user to stop speaking. After reaching the front page of HN, we thought about how we could take this a step further based on feedback we were getting from the community. Many companies were…
2024 · educationbot.cerebrium.ai · its alternatives →
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KugelAudio▲106Real-time text-to-speech model you can self-host
May 2026 · kugelaudio.com · its alternatives →
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Make an AI voice chat app in 21 lines of JavaScript
2024 · github.com · its alternatives →
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AI Voice Cloning▲182Clone any voice in 3 seconds – hyper-realistic and free
2025 · anyvoice.net · its alternatives →
- 22RT
Hi HN -- voice chat with AI is very popular these days, especially with YC startups (https://twitter.com/k7agar/status/1769078697661804795). The current approaches all do a cascaded approach, with audio -> transcription -> language model -> text synthesis. This approach is easy to get started with, but requires lots of complexity and has a few glaring limitations. Most notably, transcription is slow, is lossy and any error propagates to the rest of the system, cannot capture emotional affect, is often not robust to code-switching/accents, and more. Instead, what…
2024 · demo.tincans.ai · its alternatives →
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I work on real-time voice/video AI at Tavus and for the past few years, I’ve mostly focused on how machines respond in a conversation. One thing that’s always bothered me is that almost all conversational systems still reduce everything to transcripts, and throw away a ton of signals that need to be used downstream. Some existing emotion understanding models try to analyze and classify into small sets of arbitrary boxes, but they either aren’t fast / rich enough to do this with conviction in real-time. So I built a multimodal perception system which gives us a way to encode visual…
Feb 2026 · raven.tavuslabs.org · its alternatives →
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Talk like anime girl in realtime on your next call
Sep 2026 · voicechanger.live · 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 →