Open Source Alternatives to Sembly AI
13 open source Conversational AI options similar to Sembly AI, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
VocodeNot ratedOpen-source library for building hyper-realistic voice agents and conversational AI applications.
Open source · Self-hostable
KyutaiNot ratedA non-profit AI research lab focused on open science and developing advanced multimodal and voice AI models.
Open source · Self-hostable
WhisperWebNot ratedFree in-browser Whisper transcription and subtitle editor; audio stays on your device.
Open source
- OPOpenWorkerNot rated
OpenWorker is an open-source desktop AI agent that runs locally, integrates with everyday tools, and delivers finished outcomes by breaking down tasks.
Open source
z.aiNot ratedDeveloping advanced AI models with a focus on reducing hallucinations, including large language models, vision language models, and text-to-video models.
Open source
RasaNot ratedOpen-source conversational AI platform for building custom chatbots and virtual assistants.
Open source · Self-hostable
cal.comNot ratedOpen-source scheduling infrastructure for individuals, businesses, and developers.
Open source · Self-hostable
MycroftNot ratedOpen-source, privacy-focused voice assistant and AI platform.
Open source · Self-hostable
ParlantNot ratedParlant is an open-source conversational AI engine dedicated to solving the Human/AI alignment problem by enabling Large Language Models to reliably perform as desired and prevent hallucinations.
Open source · Self-hostable
OmnivoreNot ratedA free and open-source read-it-later service with AI-powered features and integrations.
Open source · Self-hostable
pyannote SASNot ratedCompany
Open source
- PomvoxNot rated
Press a key, talk, and clean text appears at your cursor, transcribed on the Apple Neural Engine. Free, open source, and fully private.
Open source
GitpodNot ratedCloud Development Environments for efficient and secure team software development.
Open source · Self-hostable

