Alternatives to Tortoise TTS
Open source multi-voice text-to-speech system tuned for quality. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Tortoise TTS
Open source multi-voice text-to-speech system tuned for quality.
Replacements
Listings that take over the same core job as Tortoise TTS.
Coqui TTS
Deep learning toolkit for training and running text-to-speech models.
Coqui TTS is an MPL-2.0 toolkit with pretrained models in many languages and support for training or fine-tuning, though it has not been updated since mid-2024.
Chatterbox
Open source text-to-speech model with zero-shot voice cloning.
Chatterbox is an MIT text-to-speech model with zero-shot voice cloning from a very short sample, used mainly through code without a dedicated GUI.
Kokoro
Small, fast open-weight text-to-speech model you can run locally.
Kokoro is a small Apache-licensed model that is fast and cheap to run locally, addressing Tortoise's slow generation, and it is used as a Python library.
Bark
Open source generative audio model for expressive multilingual speech.
Bark is an MIT generative audio model for expressive multilingual speech including laughter, though it is also slow and resource-intensive.
OpenVoice
Open source instant voice cloning model with flexible style control.
OpenVoice is an MIT voice cloning model with control over emotion and accent, not updated since April 2025 and mainly usable through code.
F5-TTS
Open-source text-to-speech model that can clone voices, with a local Gradio interface for running it.
F5-TTS clones voices from a short reference recording and adds a local Gradio interface, within a large, active project that needs a Python setup.
Piper
A fast neural text-to-speech engine that runs locally, even on modest hardware like a Raspberry Pi.
Piper is a GPL-3.0 engine fast enough for a Raspberry Pi, usable from the command line, Python or a C library, with quality depending on the voice model.
GPT-SoVITS
A voice cloning and text-to-speech toolkit that can train a voice from about one minute of audio.
GPT-SoVITS trains a voice from about a minute of audio with a local web UI, but it is not open source and runs on Windows and Linux only.
Similar software
Related functionality, not a direct replacement.
Whisper
An open-source speech recognition model from OpenAI for transcribing and translating audio on your own machine.
ACE-Step
Open source local music generation model that runs on your own hardware.
Applio
A free, open-source AI voice conversion suite for covers, custom voice training and real-time voice changing.
whisper.cpp
C/C++ port of OpenAI's Whisper for fast offline speech-to-text on your own hardware.
