Model reference · open weights
F5-TTS is an open-weight audio or speech model from SWivid. F5-TTS (BF16) weighs 4.0 GB; the smallest configuration that runs it is RTX 3060 12 GB.
F5-TTS is a text-to-speech model developed by SWivid. It is designed to generate fluent and faithful speech using flow matching. The model is released under the cc-by-nc-4.0 license.
Summary of the SWivid/F5-TTS model card, 2026-10-01
What it is
| Released by | SWivid |
|---|---|
| Released | 2024-10-07 |
| VRAM | 4.0 GB for the weights |
What it runs on
| Card | One stream | Memory |
|---|---|---|
| RTX 3060 12 GB | fits | 11.6 GB |
| RTX 4060 Ti 16 GB | fits | 15.4 GB |
| RTX 3090 24 GB | fits | 23.4 GB |
| RTX 4090 24 GB | fits | 23.4 GB |
| RTX 5090 32 GB | fits | 31.0 GB |
| L40S 48 GB | fits | 44.0 GB |
| A100 80 GB | fits | 78.2 GB |
| H100 80 GB | fits | 78.1 GB |
| RTX PRO 6000 Blackwell 96 GB | fits | 93.8 GB |
| DGX Spark (GB10) 128 GB unified | fits | 107 GB |
| H200 141 GB | fits | 138 GB |
| B200 180 GB | fits | 176 GB |
From the model card
Download F5-TTS or E2 TTS and place under ckpts/
ckpts/
F5TTS_v1_Base/
model_1250000.safetensors
F5TTS_Base/
model_1200000.safetensors
E2TTS_Base/
model_1200000.safetensors
Github: https://github.com/SWivid/F5-TTS Paper: F5-TTS: A Fairytaler that Fakes Fluent and Faithful Speech with Flow Matching
Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.
How it works