AI · alternatives · 2026
24 alternatives to Chatterbox Turbo
Fast, expressive, open source TTS with native watermarking
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
Kitten TTS is an open-source series of tiny and expressive text-to-speech models for on-device applications. We are excited to launch a preview of our smallest model, which is less than 25 MB. This model has 15M parameters. This release supports English text-to-speech applications in eight voices: four male and four female. The model is quantized to int8 + fp16, and it uses onnx for runtime. The model is designed to run literally anywhere eg. raspberry pi, low-end smartphones, wearables, browsers etc. No GPU required! We're releasing this to give early users a sense of the latency and voices…
2025 · github.com · its alternatives →
- 2
- 3
MARS5 TTS▲489Open-source, insanely prosodic text-to-speech model
2024 · github.com · its alternatives →
- 4
Hey HN! Braden here, creator of Whispering, an open-source speech-to-text app. I really like dictation. For years, I relied on transcription tools that were almost good, but they were all closed-source. Even a lot of them that claimed to be “local” or “on-device” were still black boxes that left me wondering where my audio really went. So I built Whispering. It’s open-source, local-first, and most importantly, transparent with your data. Your data is stored locally on your device, and your audio goes directly from your machine to a local provider (Whisper C++, Speaches, etc.) or your chosen…
2025 · github.com · its alternatives →
- 5
Orpheus TTS▲152Open-source TTS with emotion & voice cloning
2025 · canopylabs.ai · its alternatives →
- 6
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 →
- 7
Zyphra Zonos▲134Highly expressive TTS model with high fidelity voice cloning
2025 · zyphra.com · its alternatives →
- 8
Inworld TTSfree tier, from $25/mo▲318Hey 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/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 →
- 9
Mimic 3▲77Privacy-focused neural text-to-speech (TTS) engine
2022 · community.openconversational.ai · its alternatives →
- 10
FreeTTS▲123Top TTS converter & audio editor to speed up your workflow
2024 · freetts.com · its alternatives →
- 11
VoxCPM2▲110Open-source 48kHz TTS with voice design and cloning
Apr 2026 · github.com · its alternatives →
- 12
WhisperFusion builds upon the capabilities of open source tools WhisperLive and WhisperSpeech to provide a seamless conversations with an AI chatbot.
2024 · github.com · its alternatives →
- 13
Free & fast alternative to Wispr Flow. Contribute to zachlatta/freeflow development by creating an account on GitHub.
Feb 2026 · github.com · its alternatives →
- 14
Whispering▲195Open-source, local-first dictation you can trust
2025 · epicenter.so · its alternatives →
- 15
Vogent Voicelab▲171Hi HN! Voicelab is an API for optimized inference of top open-source TTS models. CSM-1B and Orpheus are the currently supported models, but we’re adding Dia, Chatterbox, Kokoro, and more in the next couple of weeks. While new ultra-realistic open-source voice models come out every month, most people still use one of a couple of closed-source providers. The reason is that these research previews can lack production-readiness; their inference stacks are usually not amenable to running things scalably (i.e. only one concurrent stream per GPU), and the public weights can generate speech of…
2025 · vogent.ai · its alternatives →
- 16
OpenWispr▲190100% local open source AI speech-to-text model
2025 · openwhispr.com · its alternatives →
- 17
Welcome to Project S.A.T.U.R.D.A.Y. This is a project that allows anyone to easily build their own self-hosted J.A.R.V.I.S-like voice assistant. In my mind vocal computing is the future of human-computer interaction and by open sourcing this code I hope to expedite us on that path. I have had a blast working on this so far and I'm excited to continue to build with it. It uses whisper.cpp [1], Coqui TTS [2] and OpenAI [3] to do speech-to-text, text-to-text and text-to-speech inference all 100% locally (except for text-to-text). In the future I plan to swap out OpenAI for llama.cpp [4]. It is…
2023 · github.com · its alternatives →
- 18
Build & program-it-yourself smart speaker for kids
2019 · hellochatterbox.com · its alternatives →
- 19
This is a small project i made years ago and updated to whisper last year, i still use it from time to time and thought it might be useful to others, or just put the idea out there for someone better than me to make a better implementation!
2024 · github.com · its alternatives →
- 20
TurboScripter▲131Your shortcut to effortless content creation at warp speed
2023 · share.streamlit.io · its alternatives →
- 21
- 22
BeepThatOut▲108Hi all, my friend and I have built an AI-powered (whisper) editor for youtubers, podcasters, and video editors, that should cut down manual editing time by a lot. It's 'a bit' more than just a whisper wrapper, because you can configure a lot: - what kind of profanities to filter - add your own words (i.e. 'covid') to prevent demonetization on platforms like youtube - adjust the transcript in the editor like in google docs - readjust the position of each word - use 1000Hz beep, silence, or your own sound and more. You can export your work as audio, video, or as an .xml project for popular…
2025 · beepthatout.com · its alternatives →
- 23
Time voice cloning & text-to-speech generator | online tts
2025 · chatterboxai.net · its alternatives →
- 24
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 80/20 versions of turn detection on top of VAD (voice activity detection) models. And…
2025 · github.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 →