AI · alternatives · 2026
24 alternatives to LemonSlice – Upgrade your voice agents to real-time video
Hey HN, we're the co-founders of LemonSlice (try our HN playground here: https://lemonslice.com/hn). We train interactive avatar video models. Our API lets you upload a photo and immediately jump into a FaceTime-style call with that character. Here's a demo: https://www.loom.com/share/941577113141418e80d2834c83a5a0a9 Chatbots are everywhere and voice AI has taken off, but we believe video avatars will be the most common form factor for conversational AI. Most people would rather watch something than read it. The problem is that generating video in real-time…
LemonSlice provides an API for creating real-time video conversations with AI avatars. Users upload a photo and enter a FaceTime-style call with an interactive character. The platform is designed for developers… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1LS
Hey HN, this is Lina, Andrew, and Sidney from Lemon Slice. We’ve trained a custom diffusion transformer (DiT) model that achieves video streaming at 25fps and wrapped it into a demo that allows anyone to turn a photo into a real-time, talking avatar. Here’s an example conversation from co-founder Andrew: https://www.youtube.com/watch?v=CeYp5xQMFZY. Try it for yourself at: https://lemonslice.com/live. (Btw, we used to be called Infinity AI and did a Show HN under that name last year: https://news.ycombinator.com/item?id=41467704.) Unlike existing…
2025 · its alternatives →
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Pushing the boundaries of conversational AI
2025 · rapport.cloud · its alternatives →
- 3
Use generative AI to create future-facing videos
2022 · studio.d-id.com · its alternatives →
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Lemon▲300Voice-Powered AI Agent That Turns Voice Into Done Tasks
Mar 2026 · heylemon.ai · its alternatives →
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Generate personalized AI sales video messages at scale
2024 · vidyard.com · its alternatives →
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Botify AI▲437Create digital humans for engaging conversations
2021 · apps.apple.com · its alternatives →
- 8IR
Hey HN, this is Lina, Andrew, and Sidney from Infinity AI (https://infinity.ai/). We've trained our own foundation video model focused on people. As far as we know, this is the first time someone has trained a video diffusion transformer that’s driven by audio input. This is cool because it allows for expressive, realistic-looking characters that actually speak. Here’s a blog with a bunch of examples: https://toinfinityai.github.io/v2-launch-page/ If you want to try it out, you can either (1) go to https://studio.infinity.ai/try-inf2, or (2)…
2024 · its alternatives →
- 9
24/7 custom AI livechat + realtime voice chatbot
2024 · chat-data.com · its alternatives →
- 10
Vidnoz AI 2.8▲146100% free Synthesia alternative with video translation
2024 · vidnoz.com · its alternatives →
- 11
Happyverse▲274Create an interactive AI video avatar of yourself!
Nov 2025 · happyverse.ai · its alternatives →
- 12
Avaturn Live▲320AI avatars 9X faster, 4X expressive range w/, human fidelity
Nov 2025 · avaturn.live · its alternatives →
- 13
Talking photos for e-learning, customer service, etc
2024 · studio.yepic.ai · its alternatives →
- 14
Advanced AI video tools for creators on the go
2024 · apps.apple.com · its alternatives →
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AI Avatar Videos▲183AI Avatars with natural expressions and perfect lipsync
2025 · creatorkit.com · its alternatives →
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Beni AI▲78Hi HN, I built Beni (https://thebeni.ai ), a web app for real-time video calls with an AI companion. The idea started as a pretty simple question: text chatbots are everywhere, but they rarely feel present. I wanted something closer to a call, where the character actually reacts in real time (voice, timing, expressions), not just “type, wait, reply”. Beni is basically: A Live2D avatar that animates during the call (expressions + motion driven by the conversation) Real-time voice conversation (streaming response, not “wait 10 seconds then speak”) Long-term memory so the character…
Feb 2026 · thebeni.ai · its alternatives →
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Lemonfox.ai▲133Human Like AI Voices API – At a Fraction of the Cost.
2025 · lemonfox.ai · its alternatives →
- 21
Add voice and video calling via your coding agent
May 2026 · cometchat.com · its alternatives →
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Realtime lifelike interactive avatars for conversational AI
Nov 2025 · liveavatar.com · 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 →