Add Mimi encoder MLX weights (fp32) + model card

LICENSE

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+MIT License
+
+Copyright (c) 2026 xocialize
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+---
+license: cc-by-4.0
+library_name: mlx
+base_model: kyutai/mimi
+pipeline_tag: feature-extraction
+tags:
+- mlx
+- audio
+- audio-codec
+- neural-codec
+- mimi
+- rvq
+- apple-silicon
+---
+
+# mlx-community/mimi-encoder-mlx
+
+The **encoder** half of Kyutai's [Mimi](https://huggingface.co/kyutai/mimi) neural audio codec,
+converted to MLX format for native inference on Apple Silicon and consumed by the
+[`xocialize/mimi-encoder-mlx-swift`](https://github.com/xocialize/mimi-encoder-mlx-swift) Swift
+port. Refer to the [original model card](https://huggingface.co/kyutai/mimi) for full details.
+
+## Model
+
+- **Family:** Mimi neural audio codec (Kyutai / Moshi — Défossez et al., [arXiv:2410.00037](https://arxiv.org/abs/2410.00037))
+- **This artifact:** the **encoder** only (SEANet conv encoder → causal transformer → stride-2 downsample → split RVQ)
+- **Input:** 24000 Hz, mono
+- **Output:** `[16, T]` codebook-index grid at 12.5 Hz (1 semantic + 15 acoustic codebooks)
+- **Precision:** fp32 (145 tensors)
+
+## Files
+
+- `encoder.safetensors` — the MLX encoder weights (fp32), extracted/converted from `kyutai/mimi`.
+
+## Usage (Swift / MLX)
+
+```swift
+import MimiCodecEncoder
+
+let encoder = MimiEncoder(config: .qwen3TTS12Hz)
+try encoder.loadWeights(from: encoderWeightsURL)   // encoder.safetensors
+let codes = encoder.encode(audio: audioArray)      // [16, T]
+```
+
+## Source
+
+- **Original model:** https://huggingface.co/kyutai/mimi
+- **Swift consumer:** https://github.com/xocialize/mimi-encoder-mlx-swift
+
+## License
+
+CC-BY-4.0 (Kyutai) — permissive, attribution required. This is a derivative (encoder-only,
+format-converted) of `kyutai/mimi`; attribution to Kyutai is retained.

encoder.safetensors

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