https://reveneau.com/open-source/changelog Projects added to the open-source alternatives directory, and releases, licence changes, archives and moves noticed by the weekly GitHub check. en Wed, 16 Sep 2026 19:00:00 GMT https://reveneau.com/open-source/bolna 2026-09-16-bolna-added Wed, 16 Sep 2026 19:00:00 GMT An MIT voice-agent platform that defines an agent in a JSON file and orchestrates speech to text, a language model and text to speech over websockets, with Twilio and Plivo for phone calls, whose maintainers say they are looking for help. https://reveneau.com/open-source/buzz 2026-09-16-buzz-added Wed, 16 Sep 2026 19:00:00 GMT A desktop app under MIT that transcribes and translates audio and video files, YouTube links and a live microphone offline with Whisper, with speaker identification and SRT, VTT and TXT export. https://reveneau.com/open-source/chatterbox 2026-09-16-chatterbox-added Wed, 16 Sep 2026 19:00:00 GMT A family of text-to-speech models from Resemble AI under MIT, with zero-shot voice cloning from a reference clip and a multilingual model covering 23 languages. https://reveneau.com/open-source/f5-tts 2026-09-16-f5-tts-added Wed, 16 Sep 2026 19:00:00 GMT A research text-to-speech model with zero-shot voice cloning whose code is MIT but whose pretrained weights are non-commercial, because of the dataset they were trained on. https://reveneau.com/open-source/fish-speech 2026-09-16-fish-speech-added Wed, 16 Sep 2026 19:00:00 GMT A multilingual text-to-speech system with voice cloning from a 10 to 30 second clip and inline emotion tags, released with its weights under a research licence that requires a separate agreement for commercial use. https://reveneau.com/open-source/handy 2026-09-16-handy-added Wed, 16 Sep 2026 19:00:00 GMT A free, offline push-to-talk dictation app for macOS, Windows and Linux that runs Whisper or NVIDIA Parakeet on your own machine and pastes the text at your cursor, under MIT. https://reveneau.com/open-source/kokoro-fastapi 2026-09-16-kokoro-fastapi-added Wed, 16 Sep 2026 19:00:00 GMT A Docker image that serves the 82-million-parameter Kokoro model through an OpenAI-compatible speech endpoint, with streaming, voice mixing and nine languages, all under Apache-2.0. https://reveneau.com/open-source/livekit-agents 2026-09-16-livekit-agents-added Wed, 16 Sep 2026 19:00:00 GMT An Apache-2.0 framework for real-time voice agents that connects any speech, language and voice provider, with semantic turn detection, native MCP tool support, a test framework, and an open-source media and SIP stack it can run on entirely. https://reveneau.com/open-source/meetily 2026-09-16-meetily-added Wed, 16 Sep 2026 19:00:00 GMT A meeting assistant under MIT that records your microphone and system audio together, transcribes live on your machine with Whisper or Parakeet, and summarises with a language model you choose. https://reveneau.com/open-source/moonshine 2026-09-16-moonshine-added Wed, 16 Sep 2026 19:00:00 GMT An on-device speech toolkit under MIT built for live streaming, with speech-to-text models trained from scratch in sizes down to 1 MB, one library across Python, the browser, phones and desktops. https://reveneau.com/open-source/openwhispr 2026-09-16-openwhispr-added Wed, 16 Sep 2026 19:00:00 GMT A dictation and meeting-notes app under MIT that runs Whisper or Parakeet locally or cloud models with your own key, detects Zoom, Teams and FaceTime calls, and labels speakers on device. https://reveneau.com/open-source/parakeet 2026-09-16-parakeet-added Wed, 16 Sep 2026 19:00:00 GMT NVIDIA's speech models and toolkit: Apache-2.0 code, and the Parakeet TDT 0.6B v3 model under CC-BY-4.0 with 25 European languages, automatic language detection, punctuation and word timestamps. https://reveneau.com/open-source/pipecat 2026-09-16-pipecat-added Wed, 16 Sep 2026 19:00:00 GMT A Python framework under BSD-2-Clause, maintained by Daily, for real-time voice and multimodal agents, with the widest provider list on this site and telephony serialisers for Twilio, Telnyx, Plivo, Vonage, Exotel and Genesys. https://reveneau.com/open-source/piper 2026-09-16-piper-added Wed, 16 Sep 2026 19:00:00 GMT A fast, local neural text-to-speech engine maintained by the Open Home Foundation, used by Home Assistant and the NVDA screen reader, under GPL-3.0. https://reveneau.com/open-source/sherpa-onnx 2026-09-16-sherpa-onnx-added Wed, 16 Sep 2026 19:00:00 GMT A runtime under Apache-2.0 from the next-generation Kaldi team that runs speech to text, text to speech, speaker diarization and voice activity detection locally on CPUs, NPUs and phones, with no internet connection. https://reveneau.com/open-source/speaches 2026-09-16-speaches-added Wed, 16 Sep 2026 19:00:00 GMT An OpenAI-compatible server under MIT for streaming transcription, translation and text to speech, loading Whisper, Kokoro and Piper models on demand, described by its maintainers as Ollama for speech models. https://reveneau.com/open-source/ten-framework 2026-09-16-ten-framework-added Wed, 16 Sep 2026 19:00:00 GMT A real-time conversational AI framework from Agora with a visual designer, a SIP extension and turn detection, released under Apache-2.0 plus conditions that forbid competing deployments, which makes it source available rather than open source. https://reveneau.com/open-source/vibe 2026-09-16-vibe-added Wed, 16 Sep 2026 19:00:00 GMT An offline transcription app under MIT that records system audio and the microphone, supports Whisper, Parakeet and Nemotron models, labels speakers, and exports SRT, VTT, TXT, HTML, PDF, JSON and DOCX. https://reveneau.com/open-source/voiceink 2026-09-16-voiceink-added Wed, 16 Sep 2026 19:00:00 GMT A macOS dictation app under GPL-3.0 whose README names Superwhisper and Wispr Flow as the tools it replaces, with local models, per-app modes, a personal dictionary and an AI assistant mode. https://reveneau.com/open-source/vosk 2026-09-16-vosk-added Wed, 16 Sep 2026 19:00:00 GMT An offline speech recognition toolkit under Apache-2.0 with streaming, models of about 50 MB, 20+ languages, a reconfigurable vocabulary and speaker identification, from small boards to clusters. https://reveneau.com/open-source/whisper 2026-09-16-whisper-added Wed, 16 Sep 2026 19:00:00 GMT OpenAI's general-purpose speech recognition model, released with code and weights under MIT, in six sizes from 39 million to 1.55 billion parameters, with multilingual transcription, translation to English and language detection. https://reveneau.com/open-source/whisper-cpp 2026-09-16-whisper-cpp-added Wed, 16 Sep 2026 19:00:00 GMT A dependency-free C and C++ port of Whisper under MIT that runs on CPUs, Apple Silicon and phones, with quantised models, an HTTP server and bindings for a dozen languages. https://reveneau.com/open-source/whispering 2026-09-16-whispering-added Wed, 16 Sep 2026 19:00:00 GMT A speech-to-text app inside the Epicenter monorepo under AGPL-3.0 that records, transcribes with a provider you choose, cloud or local, optionally polishes the text, and pastes it at the cursor. https://reveneau.com/open-source/whisperx 2026-09-16-whisperx-added Wed, 16 Sep 2026 19:00:00 GMT Batched Whisper transcription under BSD-2-Clause with word-level timestamps from forced alignment and speaker labels from pyannote, the closest open-source match to a hosted transcription API's output. https://reveneau.com/open-source/alternatives-to/assemblyai 2026-09-16-assemblyai-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to AssemblyAI page is live. https://reveneau.com/open-source/alternatives-to/deepgram 2026-09-16-deepgram-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Deepgram page is live. https://reveneau.com/open-source/alternatives-to/elevenlabs 2026-09-16-elevenlabs-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to ElevenLabs page is live. https://reveneau.com/open-source/alternatives-to/elevenlabs-agents 2026-09-16-elevenlabs-agents-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to ElevenLabs Agents page is live. https://reveneau.com/open-source/alternatives-to/fireflies-ai 2026-09-16-fireflies-ai-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Fireflies.ai page is live. https://reveneau.com/open-source/alternatives-to/otter-ai 2026-09-16-otter-ai-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Otter.ai page is live. https://reveneau.com/open-source/alternatives-to/retell-ai 2026-09-16-retell-ai-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Retell AI page is live. https://reveneau.com/open-source/alternatives-to/superwhisper 2026-09-16-superwhisper-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Superwhisper page is live. https://reveneau.com/open-source/alternatives-to/vapi 2026-09-16-vapi-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Vapi page is live. https://reveneau.com/open-source/alternatives-to/wispr-flow 2026-09-16-wispr-flow-page Wed, 16 Sep 2026 19:00:00 GMT The alternatives to Wispr Flow page is live.