nowfound

AI · alternatives · 2026

24 alternatives to Voice gender classifier for European voice AI (1MB, ONNX, 4ms)

Hi, I'm Kamil and I'm a founder of Applied AI agency in Warsaw, Poland. We've trained a small <1MB voice classifier model that runs on CPU in 4ms. Can be run next to silero VAD in voice AI deployments. What we noticed in production deployments of voice assistants in Contact Centers in EU is that human consultants pick up immediately how to inflect verbs and ajdectives after one utterance from the caller. But voice AI agents don't know it until 1-2 minutes into the call when they are either corrected or the caller uses explicitly words with male&#x2F;female form a couple of times. Our model…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1

    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 →

  2. 2
    Cols.ai▲139

    AI phone calling platform

    2024 · its alternatives →

  3. 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 →

  4. 4

    Premium AI voice quality without the premium price tag.

    2025 · async.com · its alternatives →

  5. 5

    Have a natural, spoken conversation with AI! Contribute to KoljaB/RealtimeVoiceChat development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  6. 6

    Highly expressive and natural speech generation model

    2025 · microsoft.ai · its alternatives →

  7. 7
    Inworld TTSfree tier, from $25/mo▲318

    Hey HN, this is Igor, one of the engineers behind Inworld Runtime, which we're releasing today in public preview. We built it to solve the common problem we and our customers had: engineers spend more time on AI ops and plumbing than on actual feature development. This was often due to the challenge of using Python for I&#x2F;O-bound, high-concurrency workloads and complexity maintaining pipelines with streams that use always-changing ML models. Our solution is a high-performance runtime written in C++ with the core idea of defining AI logic as graphs. For instance, a basic voice-to-voice…

    2025 · inworld.ai · its alternatives →

  8. 8

    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 →

  9. 9

    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 →

  10. 10

    Generative AI voice bot for sales, support, and beyond

    2023 · voicegenie.ai · its alternatives →

  11. 11

    Learn English, Spanish, German, French & more by talking

    2024 · lucasapp.framer.ai · its alternatives →

  12. 12

    Tighter instruction adherence in speech agents

    Feb 2026 · developers.openai.com · its alternatives →

  13. 13

    First TTS model to support all 22 Indic languages + English

    2024 · its alternatives →

  14. 14

    Human-like voices for every content

    2023 · cohesive.so · its alternatives →

  15. 15
    Callin.io▲125

    The first AI phone assistant for small businesses

    2024 · callin.io · its alternatives →

  16. 16

    AI Voice assistant in 3 minutes. Built for non-developers

    Nov 2025 · klariqo.com · its alternatives →

  17. 17

    Analytics for your voice AI agent

    2024 · its alternatives →

  18. 18

    One API to build production-ready voice agents

    Apr 2026 · assemblyai.com · its alternatives →

  19. 19

    Our goal with this project is to build a completely open source, state of the art turn detection model that can be used in any voice AI application. I've been experimenting with LLM voice conversations since GPT-4 was first released. (There's a previous front page Show HN about Pipecat, the open source voice AI orchestration framework I work on. [1]) It's been almost two years, and for most of that time, I've been expecting that someone would "solve" turn detection. We all built initial, pretty good 80&#x2F;20 versions of turn detection on top of VAD (voice activity detection) models. And…

    2025 · github.com · its alternatives →

  20. 20

    Voice agents powered by Simba 3.2 the world's #1 voice model

    Jul 2026 · speechify.ai · its alternatives →

  21. 21
    AI-Spy▲113

    Ai Speech Detection. Listen with Confidence.

    2023 · ai-spy.xyz · its alternatives →

  22. 22

    One voice detector to rule them all

    2021 · github.com · its alternatives →

  23. 23

    Build Voice AI Agents in 100+ languages for ₹1.5/min

    May 2026 · thinnest.ai · its alternatives →

  24. 24

    A low-code , No-Code Voice AI agents for everyone

    2025 · vomyra.com · its alternatives →

Also compare

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 →