AI · alternatives · 2026
24 alternatives to Voice API
Build voice agents you own
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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Daily Bots▲223Build voice-to-voice AI agents with any LLM with Open Source
2024 · daily.co · its alternatives →
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A fast, open-source voice assistant powered by Groq, Cartesia, and Vercel.
2024 · swift-ai.vercel.app · its alternatives →
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Voicebun▲189Hey HN, I built Voicebun as a pet project because I was frustrated with how locked-down and rigid voice agents still are—many tools are either closed platforms, lack deep customization, or charge a lot just to test ideas. I wanted a way to quickly spin up AI voice agents that I could fully control—from the voice itself to the logic behind every word. Voicebun is an open-source voice agent builder. You can: - Clone voices and generate audio using your own scripts and prompts - Dynamically change prompts based on user input - Add custom logic through functions and webhooks (e.g. hit an API,…
2025 · voicebun.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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A low-code , No-Code Voice AI agents for everyone
2025 · vomyra.com · its alternatives →
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Retell AI▲300API that helps developers build human-like voice agents
2024 · retellai.com · its alternatives →
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Voice Agent API▲118One API to build production-ready voice agents
Apr 2026 · assemblyai.com · its alternatives →
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VISEO Bot Maker▲150Create chatbots and vocal apps in just a few clicks
2017 · bot.viseo.io · 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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Our most capable voice agent is now available via API
Apr 2026 · x.ai · its alternatives →
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2017 · medium.com · its alternatives →
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Smoove Call▲18Build and deploy custom AI Voice Agents for your business
2025 · smoovecall.com · its alternatives →
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Bolcho AI▲103Build Voice AI agents that actually speak India
Aug 2026 · bolchoai.in · its alternatives →
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Prompt2Voice▲19Build and ship reliable voice AI agents just by prompting
2025 · omnidim.io · 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 →