What F5 TTS does
F5-TTS is an open-source text-to-speech codebase on GitHub, described on the page as official code for the F5-TTS paper on flow matching. It uses a Diffusion Transformer with ConvNeXt V2 for faster training and inference. Named features include E2 TTS, Sway Sampling for inference-time flow step sampling, a Gradio app with chunk inference and multi-speaker generation, a CLI inference command with optional TOML configuration, training with Hugging Face Accelerate, and a fine-tuning Gradio app. Runtime options include Triton and TensorRT-LLM. The project works with Hugging Face, ModelScope, Docker images, and PyTorch on NVIDIA, AMD, Intel, and Apple Silicon. The code is MIT licensed, and the page says the pre-trained models are licensed under CC-BY-NC. The page states no pricing.
How F5 TTS compares with its closest alternatives
All 5 closest alternatives have a free plan, as F5 TTS does. All 5 offer an API, as F5 TTS does. F5 TTS offers a command-line tool. Of the 3 alternatives with platforms on record, 2 offer a command-line tool. F5 TTS was founded in 2024; the alternatives were founded between 2021 and 2024, 3 of them earlier. F5 TTS has no single headquarters on record; its alternatives with a known headquarters are in the United States and the United Kingdom.