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F5-TTS vs IndexTTS
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | F5-TTS | IndexTTS |
|---|---|---|
| Language | Python | Python |
| Licence | MIT | Other |
| Stars | 15k | 24k |
| Latest | 1.1.22 | v2.5.0 |
| Last push | 2026-09-21 | 2026-09-29 |
| Release cadence | about 20 days between releases | about 173 days between releases |
| Active contributors | 3 commit authors on the default branch in the last 90 days | 11 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace ElevenLabs. Alternatives to ElevenLabs →
PartialF5-TTSVoice cloning from a short reference clip, with a Gradio app.
PartialIndexTTSZero-shot TTS with voice cloning and control over duration and emotion.
F5-TTS
- 1.1.222026-07-23fix: allocate fix_duration across chunks to avoid N× duration blow-up
- 1.1.212026-07-05update gradio>=6.15.0 in pyproject.toml
- 1.1.202026-04-20fix: refactor cache handling in DiT, MMDiT, and UNetT classes (lazyinit to avoid EMA deepcopy failure while training)
- 1.1.192026-04-16reuse resamplers and cache vocos MelSpectrogram instances
- 1.1.182026-03-24Add Arabic model details to SHARED.md
F5-TTS
✓ signed The latest release, 1.1.22, carries a signature GitHub verified.
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IndexTTS
✓ signed The latest release, v2.5.0, carries a signature GitHub verified.
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