mlx-community/IndexTTS-2.5-fp16

IndexTTS-2.5 — MLX (fp16)

MLX conversion of IndexTeam/IndexTTS-2.5 (revision d0aa86e75bb6f3437f3831e95056fa72842d89ef) for Apple Silicon, re-hosted for the MLXEngine fleet. Consumed by mlx-indextts2-swift (Swift-MLX port, Apache-2.0) and by vanch007/mlx-indextts2 (Python-MLX, MIT), whose converter (convert_v25.py, rev 4a32c967) produced these tensors with strict tensor-coverage verification (conversion_report.json).

Files

File	Component	dtype
gpt.safetensors	UnifiedVoice 2.5 GPT (24×1280, CAMPPlus speaker projection, language embedding, emotion conditioner)	fp16
codec.safetensors	EnhancedCodec (Vocos/ConvNeXt encoder+decoder, 8192×8 FVQ)	fp16
s2mel.safetensors	S2Mel — length regulator + DiT/CFM	fp16
bigvgan.safetensors	BigVGAN v2 22 kHz 80-band 256× vocoder (NVIDIA, MIT)	fp16
multilingual_zh_ja_yue_char_del.tiktoken	tiktoken BPE vocabulary (60 509 tokens incl. specials)	—
model.safetensors	facebook/w2v-bert-2.0 (MIT) — the semantic front-end, unchanged	fp32
config.yaml / config.json / model_manifest.json / conversion_report.json	checkpoint config + conversion provenance	—
feat1.pt / feat2.pt / wav2vec2bert_stats.pt	emotion matrices + w2v-BERT feature stats (torch pickles, as upstream)	—

License

The model weights (gpt, codec, s2mel, the tokenizer and the feat/stats files) are licensed under the bilibili Model Use License Agreement — see LICENSE (verbatim copy). Commercial use is permitted; per §2.2 an entity whose products exceeded 100 million monthly active users in the preceding month or RMB 1 billion annual revenue in the preceding year must request a separate license from bilibili. Downstream recipients are bound by the same Agreement (§3.4(a)); retain the notices and this LICENSE with every copy (§3.4(b)).

bigvgan.safetensors is NVIDIA's BigVGAN v2 (MIT). model.safetensors is Meta's w2v-bert-2.0 (MIT).

Derivative-work statement (§4.1(a)): Any modifications made to the original model in this Derivative Work are not endorsed, warranted, or guaranteed by the original right-holder of the original model, and the original right-holder disclaims all liability related to this Derivative Work. (The modification here is a dtype conversion + tensor re-layout for MLX.)