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RLX compile bundle for KittenML/kitten-tts-mini-0.8. Replaces ONNX Runtime at inference time: rlx-kittentts loads graph.json + weights.safetensors, lowers to RLX HIR, and compiles with rlx-runtime.
Model source
Source description
RLX compile bundle for KittenML/kitten-tts-mini-0.8. Replaces ONNX Runtime at inference time: rlx-kittentts loads graph.json + weights.safetensors, lowers to RLX HIR, and compiles with rlx-runtime.
Sources
1 sourceVerified Sep 22
Model artifacts
1 artifactSource excerpts
2 excerptsUpstream weights (required): download KittenML/kitten-tts-mini-0.8 for config.json and voices.npz.
| File | Description |
|---|---|
graph.json | RLX graph IR (3006 nodes) |
weights.safetensors | Decomposed model weights (~350 MB) |
manifest.json | Export metadata (op histogram, I/O shapes) |
# From rlx-models root
just fetch-kittentts
just fetch-kitten-rlx-bundle
just kittentts -- --native --ipa "həˈloʊ" --voice Jasper --out-wav out.wav
Manual download:
# 1. Upstream ONNX checkpoint + voices
hf download KittenML/kitten-tts-mini-0.8 --local-dir .cache/kittentts-mini-0.8
# 2. This RLX bundle (into rlx_bundle/ subdirectory)
hf download eugenehp/kitten-tts-mini-0.8-rlx --local-dir .cache/kittentts-mini-0.8/rlx_bundle
# 3. Sentinel file for native auto-detection
ln -sf rlx_bundle/weights.safetensors .cache/kittentts-mini-0.8/model.safetensors
# 4. Synthesize (from rlx-models checkout)
cargo run -p rlx-kittentts --features native --release -- \
--model-dir .cache/kittentts-mini-0.8 \
--native --ipa "həˈloʊ" --voice Jasper --out-wav out.wav
.cache/kittentts-mini-0.8/
config.json # from KittenML
voices.npz # from KittenML
kitten_tts_mini_v0_8.onnx
model.safetensors # symlink → rlx_bundle/weights.safetensors
rlx_bundle/ # this repo
graph.json
manifest.json
weights.safetensors
Alternatively, set RLX_ONNX_BUNDLE to the bundle directory path.
| Variable | Purpose |
|---|---|
RLX_KITTENTTS_DIR | Model directory (default: .cache/kittentts-mini-0.8) |
RLX_ONNX_BUNDLE | Bundle directory if not co-located with weights |
KITTEN_RLX_WEIGHTS | Directory containing model.safetensors |
KITTEN_RLX_BUNDLE | Legacy alias for RLX_ONNX_BUNDLE |
KITTEN_RLX_HF_REPO | Override RLX bundle HF repo (default: eugenehp/kitten-tts-mini-0.8-rlx) |
From MIT-RLX/rlx-models:
just fetch-kittentts
just export-kitten-rlx-bundle
Requires: pip install onnx onnxshape numpy safetensors
| Crate | Role |
|---|---|
kitten_tts_mini_rlx | Bundle → HIR → compile |
rlx-kittentts | CLI + library (--features native) |
| Tensor | Shape | dtype |
|---|---|---|
input_ids | [1, sequence_length] | i64 |
style | [1, 256] | f32 |
speed | [1] | f32 |
waveform | [num_samples] | f32 (output) |
duration | dynamic | i64 (output) |
Derived from KittenML/kitten-tts-mini-0.8 — follow the upstream model license. RLX tooling (rlx-models) is GPL-3.0.
--- license: other base_model: KittenML/kitten-tts-mini-0.8 tags: - rlx - text-to-speech - onnx - safetensors library_name: rlx-models --- # Kitten TTS mini 0.8 — RLX bundle RLX compile bundle for [KittenML/kitten-tts-mini-0.8](https://huggingface.co/KittenML/kitten-tts-mini-0.8). Replaces ONNX Runtime at inference time: `rlx-kittentts` loads `graph.json` + `weights.safetensors`, lowers to RLX HIR, and compiles with `rlx-runtime`. **Upstream weights (required):** download [KittenML/kitten-tts-mini-0.8](https://huggingface.co/KittenML/kitten-tts-mini-0.8) for `config.json` and `voices.npz`. ## Files | File | Description | |------|-------------| | `graph.json` | RLX graph IR (3006 nodes) | | `weights.safetensors` | Decomposed model weights (~350 MB) | | `manifest.json` | Export metadata (op histogram, I/O shapes) | ## Quick start ```bash # From rlx-models root just fetch-kittentts just fetch-kitten-rlx-bundle just kittentts -- --native --ipa "həˈloʊ" --voice Jasper --out-wav out.wav ``` Manual download: ```bash # 1. Upstream ONNX checkpoint + voices hf download KittenML/kitten-tts-mini-0.8 --local-dir .cache/kittentts-mini-0.8 # 2. This RLX bundle (into rlx_bundle/ subdirectory) hf download eugenehp/kitten-tts-mini-0.8-rlx --local-dir .cache/kittentts-mini-0.8/rlx_bundle # 3. Sentinel file for native auto-detection ln -sf rlx_bundle/weights.safetensors .cache/kittentts-mini-0.8/model.safetensors # 4. Synthesize (from rlx-models checkout) cargo run -p rlx-kittentts --features native --release -- \ --model-dir .cache/kittentts-mini-0.8 \ --native --ipa "həˈloʊ" --voice Jasper --out-wav out.wav ``` ## Layout after merge ```text .cache/kittentts-mini-0.8/ config.json # from KittenML voices.npz # from KittenML kitten_tts_mini_v0_8.onnx model.safetensors # symlink → rlx_bundle/weights.safetensors rlx_bundle/ # this repo graph.json manifest.json weights.safetensors ``` Alternatively, set `RLX_ONNX_BUNDLE` to the bundle directory path. ## Environment variables | Variable | Purpose | |----------|---------| | `RLX_KITTENTTS_DIR` | Model directory (default: `.cache/kittentts-mini-0.8`) | | `RLX_ONNX_BUNDLE` | Bundle directory if not co-located with weights | | `KITTEN_RLX_WEIGHTS` | Directory containing `model.safetensors` | | `KITTEN_RLX_BUNDLE` | Legacy alias for `RLX_ONNX_BUNDLE` | | `KITTEN_RLX_HF_REPO` | Override RLX bundle HF repo...
Source context: 0 downloads · 1 likes · Pipeline text-to-speech · Library rlx-models · Repo eugenehp/kitten-tts-mini-0.8-rlx