Field	Value
Display name	IndexTTS2
Source	`IndexTeam/IndexTTS-2`
Source revision	`740dcaff396282ffb241903d150ac011cd4b1ede`
Publish repo	`aufklarer/IndexTTS2-MLX-fp16`
Parameter count	1.5B-class
Sample rate	24000 Hz
Voice conditioning	reference audio plus optional emotion reference/control path
Streaming	needs runtime validation
License posture	check upstream/commercial terms before product use
Runtime status	artifact-export; Swift native inference not implemented

Files

soniqo_manifest.json - export manifest with source, runtime status, and file metadata
config.json - upstream or generated root config for runtime metadata
*.safetensors - fp16-converted model weights with upstream key names preserved
aux/ - auxiliary model configs and fp16-converted weights required by this runtime, when applicable

Auxiliary Models

This expanded export includes auxiliary assets that upstream IndexTTS2 downloads at runtime:

Component	Source	Purpose
w2v-BERT 2.0	`facebook/w2v-bert-2.0`	SeamlessM4T features and semantic hidden states for reference audio
MaskGCT semantic codec	`amphion/MaskGCT`	Quantizes reference semantic features and maps generated codes to embeddings
CAMPPlus	`funasr/campplus`	Extracts the 192-d global style vector from the speaker reference
BigVGAN	`nvidia/bigvgan_v2_22khz_80band_256x`	Decodes generated 80-band mel spectrograms to waveform

Public upstream weights include GPT/S2Mel checkpoints plus a Qwen emotion merge directory.
The expanded export also bundles the upstream auxiliary models required by IndexTTS2 v2 synthesis.
This exporter converts PyTorch pickle checkpoints to safetensors and preserves subdirectory layout.
Native Swift inference still needs the graph ports for w2v-BERT, MaskGCT semantic codec, GPT/S2Mel, CAMPPlus, and BigVGAN.

These artifacts are for runtime implementation and evaluation. They are not a drop-in Transformers checkpoint.

git clone https://huggingface.co/aufklarer/IndexTTS2-MLX-fp16