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AI · alternatives · 2026

24 alternatives to Building a Real-Time AI Avatar for Coaching and Training Simulations

cerebrium.ai/blog/how-to-build-a-real-time-ai-avatar-for-training-and-coaching At Cerebrium, we have recently built a few demos showing voice AI capabilities (worlds fastest voice agent & realtime RAG agent) but we wanted to push the boundary and see if we could create realistic, human-like situations to train and onboard teams to perform better - recreating real life scenarios! An example of this is a sales coach for your sales team, an investor pitch or even prep for a notoriously stressful YC interview . To achieve this there were a few difficult problems to solve, namely: - How…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Building a Real-Time AI Avatar for Coaching and Training Simulations launched in 2024; newer entries below may have overtaken it.

  1. 1
    Retell AI▲296

    API that helps developers build human-like voice agents

    2024 · retellai.com · its alternatives →

  2. 2

    AI avatars 9X faster, 4X expressive range w/, human fidelity

    Nov 2025 · avaturn.live · its alternatives →

  3. 3

    Pushing the boundaries of conversational AI

    2025 · rapport.cloud · its alternatives →

  4. 4

    Scale your marketing videos with AI avatars

    2024 · studio.neiro.ai · its alternatives →

  5. 5

    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 →

  6. 6

    The open-source framework for real-time AI voice

    2025 · videosdk.live · its alternatives →

  7. 7IR

    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 →

  8. 8

    AI voices so real you won't believe it

    2023 · its alternatives →

  9. 9LU

    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…

    Jan 2026 · its alternatives →

  10. 10

    Create an interactive AI video avatar of yourself!

    Nov 2025 · happyverse.ai · its alternatives →

  11. 11

    AI feedback on interviews, presentations, and conversations

    2025 · its alternatives →

  12. 12

    24/7 custom AI livechat + realtime voice chatbot

    2024 · chat-data.com · its alternatives →

  13. 13
    Ojin▲106

    Talk to an AI Agent with a real face and voice, in real time

    Aug 2026 · ojin.ai · its alternatives →

  14. 14

    Real-time AI mock interviews that simulate the real deal

    2024 · its alternatives →

  15. 15

    Turn expertise into 24/7 client-facing AI voice agents

    Apr 2026 · mindpal.space · its alternatives →

  16. 16

    The Future of Voice. Mastered by AI.

    2023 · vaanee.co · its alternatives →

  17. 17
    AQX▲103

    Build AI voice agents to automate sales & support

    2025 · its alternatives →

  18. 18

    Real-time Voice-to-Voice Mock Interviews & Feedback with AI

    2024 · its alternatives →

  19. 19
    VocalCV▲19

    A new way to create your Resume

    2025 · vocalcv.com · its alternatives →

  20. 20

    Practice Real-time Voice Interviews with AI

    2024 · its alternatives →

  21. 21

    Mock interviews with OpenAI's Realtime speech-to-speech API

    2024 · its alternatives →

  22. 22

    Practice high-stakes sales, support, and leadership conversations with real-time AI. Get instant speaking pace feedback and 210-competency scoring with zero voice storage.

    Aug 2026 · dehurdle.com · its alternatives →

  23. 23

    Your AI interview coach. Train like it’s the real thing.

    2025 · krownie.com · its alternatives →

  24. 24

    Ace that interview with realtime AI coaching

    2024 · interviewise.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 →