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ornith-1.5-9b-mxfp4-vision-mlx
Shiftedx/ornith-1.5-9b-mxfp4-vision-mlx
ornith-1.5-9b-mxfp4-vision-mlx is a image-text-to-text model from Shiftedx. Use it for the image-text-to-text task on the model card, and read the license before you ship it in a product. It is set up for mlx. The card lists the license as mit.
Standard group-32 MXFP4 language quant with the same-parent BF16 vision tower. Built from ornith-ai/Ornith-1.5-9B revision 98db59b for Apple Silicon.
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5.7 GB on disk
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Base models
Model card
From the Hugging Face model README
ornith-1.5-9b-mxfp4-vision-mlx
Standard group-32 MXFP4 language quant with the same-parent BF16 vision tower. Built from ornith-ai/Ornith-1.5-9B revision 98db59b for Apple Silicon.
Format
- Logical size: 5.69 GB
- Dense Qwen3.5 9B language trunk: 250 uniform MXFP4 group-32 modules, including recurrent inputs
- Vision: 333 same-parent BF16 tensors
- Context metadata: 262,144 tokens
- Runtime: autoregressive MLX-LM/MLX-VLM
- Native MTP: unavailable; the upstream checkpoint contains no
mtp.*tensors
Exact precision and conversion records are included in BUILD_RECIPE.json and conversion_receipt.json. Immutable weight revision: d8f35fe.
Usage
python -m mlx_vlm.generate \
--model Shiftedx/ornith-1.5-9b-mxfp4-vision-mlx \
--image image.jpg \
--prompt "Describe this image." \
--max-tokens 256
Qualification
ShiftedX Bench v0.3.0 commit 3bbb0bfa01e33503163cb34ef52b4d507e456265, Apple M4 Max / 64 GiB, thinking enabled, medium reasoning, temperature 1, top-p 0.95, top-k 20, KV cache off:
| Lane | Result | Mean decode | Peak active memory |
|---|---|---|---|
| Quality | 5/10 | 70.9 tok/s | 4.76 GB |
| Long context | 4/15 | 66.6 tok/s | 4.76 GB |
| Tools | 6/6 | 68.8 tok/s | 5.86 GB |
| Agentic | 0/2 | — | — |
| Vision, native MLX-VLM | 2/4 strict; 4/4 semantic | — | — |
Text lanes used MTPLX 2.7.1 in stock autoregressive mode. Vision used native MLX-VLM because MTPLX AR rejects image content. The two strict vision misses were correct answers wrapped in Markdown fences. Structural loading and deterministic text/vision smokes passed. Quantization can change behavior; see the parent model card for intended use and license details.
- Task
- Image-Text-to-Text
- Library
- mlx
- Type
- qwen3_5
- License
- mit
- Created
- Aug 19, 2026
- Updated
- Aug 19, 2026