IndexTTS-2.5
Official site ↗
Open weights — free
+ Bilibili's open zero-shot cloning — 5 languages, emotion and duration control
− Check the bilibili model license for commercial use
MODEL TOOL
Voiceover, audio content, voice cloning — ranked against the Artificial Analysis Speech Arena.
1 · What are you doing?
2 · Budget tier
Recommended for · Voice & TTS · Budget
Open-source voices — free local narration drafts and bulk reads.
IndexTTS-2.5Open weights — free
+ Bilibili's open zero-shot cloning — 5 languages, emotion and duration control
− Check the bilibili model license for commercial use
CosyVoice 2Open weights — free
+ Great dialect coverage and fine control
− Setup work required
KokoroOpen weights — Apache 2.0
+ 82M params, runs on CPU
− Limited emotion and voices
Three tiers: flagship for quality-critical work, balanced for daily production, budget for bulk and experiments. Names track the current mainstream options — the landscape moves fast, so treat the tier logic (not the exact model list) as the durable part.
Rankings and prices checked — leaderboards move weekly; always confirm pricing on the official site before committing.
Sources: Artificial Analysis · LMArena · Crafiq 3D · Taxon3D