Instructions to use majentik/Ornith-1.0-35B-MLX-NVFP4 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use majentik/Ornith-1.0-35B-MLX-NVFP4 with MLX:

# Make sure mlx-vlm is installed
# pip install --upgrade mlx-vlm

from mlx_vlm import load, generate
from mlx_vlm.prompt_utils import apply_chat_template
from mlx_vlm.utils import load_config

# Load the model
model, processor = load("majentik/Ornith-1.0-35B-MLX-NVFP4")
config = load_config("majentik/Ornith-1.0-35B-MLX-NVFP4")

# Prepare input
image = ["http://images.cocodataset.org/val2017/000000039769.jpg"]
prompt = "Describe this image."

# Apply chat template
formatted_prompt = apply_chat_template(
    processor, config, prompt, num_images=1
)

# Generate output
output = generate(model, processor, formatted_prompt, image)
print(output)

Notebooks
Google Colab
Kaggle
Local Apps Settings
LM Studio

How to use majentik/Ornith-1.0-35B-MLX-NVFP4 with Pi:

Start the MLX server

# Install MLX LM:
uv tool install mlx-lm
# Start a local OpenAI-compatible server:
mlx_lm.server --model "majentik/Ornith-1.0-35B-MLX-NVFP4"

Configure the model in Pi

# Install Pi:
npm install -g @mariozechner/pi-coding-agent
# Add to ~/.pi/agent/models.json:
{
  "providers": {
    "mlx-lm": {
      "baseUrl": "http://localhost:8080/v1",
      "api": "openai-completions",
      "apiKey": "none",
      "models": [
        {
          "id": "majentik/Ornith-1.0-35B-MLX-NVFP4"
        }
      ]
    }
  }
}

Run Pi

# Start Pi in your project directory:
pi

Hermes Agent new

How to use majentik/Ornith-1.0-35B-MLX-NVFP4 with Hermes Agent:

Start the MLX server

# Install MLX LM:
uv tool install mlx-lm
# Start a local OpenAI-compatible server:
mlx_lm.server --model "majentik/Ornith-1.0-35B-MLX-NVFP4"

Configure Hermes

# Install Hermes:
curl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash
hermes setup
# Point Hermes at the local server:
hermes config set model.provider custom
hermes config set model.base_url http://127.0.0.1:8080/v1
hermes config set model.default majentik/Ornith-1.0-35B-MLX-NVFP4

Run Hermes

hermes

OpenClaw new

How to use majentik/Ornith-1.0-35B-MLX-NVFP4 with OpenClaw:

Start the MLX server

# Install MLX LM:
uv tool install mlx-lm
# Start a local OpenAI-compatible server:
mlx_lm.server --model "majentik/Ornith-1.0-35B-MLX-NVFP4"

Configure OpenClaw

# Install OpenClaw:
npm install -g openclaw@latest
# Register the local server and set it as the default model:
openclaw onboard --non-interactive --mode local \
  --auth-choice custom-api-key \
  --custom-base-url http://127.0.0.1:8080/v1 \
  --custom-model-id "majentik/Ornith-1.0-35B-MLX-NVFP4" \
  --custom-provider-id mlx-lm \
  --custom-compatibility openai \
  --custom-text-input \
  --accept-risk \
  --skip-health

Run OpenClaw

openclaw agent --local --agent main --message "Hello from Hugging Face"

Ornith-1.0-35B-MLX-NVFP4

Summary

MLX NVFP4 (nvfp4, 4-bit, group size 16) quantization of deepreinforce-ai/Ornith-1.0-35B at upstream revision 5df2ed3f675c7beaa490328cc70bb573b65fb660, converted from the BF16 safetensors with mlx_vlm convert (mlx-vlm 0.6.3) after a BF16 expert-fusing pass (pipelines.moe_expert_fuse, majek repo — upstream ships unfused per-expert MoE tensors). ~19.0 GiB on disk.

Runtime status (verified 2026-07-04): loads and generates under mlx-vlm 0.6.3 (vision probe passed on this exact payload) and under mlx-lm 0.31.3 for text-only use (text probe passed). Republished 2026-07-04 in the mlx-vlm module layout, replacing the 2026-07-02 pack, which no MLX runtime could load. Output quality beyond the smoke probes is not verified.

Runtime status

Runtime	Loads?	Notes
mlx-vlm 0.6.3	✅	vision + text; language tower quantized, vision tower BF16
mlx-lm 0.31.3	✅ text-only	its sanitize drops the vision tower at load

Smoke-gated on Apple Silicon before publish (2026-07-04): this exact payload was loaded and probed per variant (pipelines/vlm_pack_smoke.py / pipelines/lm_pack_smoke.py, majek repo); verdicts in .sisyphus/evidence/lane-a-republish/ and in PROVENANCE.md.

from mlx_vlm import load, generate
from mlx_vlm.prompt_utils import apply_chat_template

model, processor = load("majentik/Ornith-1.0-35B-MLX-NVFP4")
prompt = apply_chat_template(
    processor, model.config, "Describe this image.", num_images=1
)
print(generate(model, processor, prompt, image=["image.jpg"],
               max_tokens=128).text)

Text-only use:

from mlx_lm import load, generate

model, tokenizer = load("majentik/Ornith-1.0-35B-MLX-NVFP4")
prompt = tokenizer.apply_chat_template(
    [{"role": "user", "content": "Explain KV caching in one sentence."}],
    add_generation_prompt=True, tokenize=False,
)
print(generate(model, tokenizer, prompt=prompt, max_tokens=128))

Why this variant

MLX-native NVFP4 — E2M1 weights with per-16-element FP8 scales (NVIDIA Blackwell layout), group size 16.

Reproduce

# base = snapshot of deepreinforce-ai/Ornith-1.0-35B @ 5df2ed3f675c7beaa490328cc70bb573b65fb660
python -m pipelines.moe_expert_fuse --src /tmp/lane-a-republish/ornith-1.0-35b/base --dst /tmp/lane-a-republish/ornith-1.0-35b/fused --report-out /tmp/lane-a-republish/ornith-1.0-35b/fuse-report.json
python -m mlx_vlm convert --hf-path /tmp/lane-a-republish/ornith-1.0-35b/fused --mlx-path /tmp/lane-a-republish/ornith-1.0-35b/NVFP4 -q --q-bits 4 --q-group-size 16 --q-mode nvfp4

Vision tower

The vision tower (333 upstream tensors) rides through in BF16 — mlx_vlm convert quantizes only the language tower by default. This pack stores weights in the mlx-vlm module layout (vision_tower.*, language_model.*) rather than the upstream model.visual.* naming.

Family

All MLX variants of this model ship together:

majentik/Ornith-1.0-35B-MLX-2bit
majentik/Ornith-1.0-35B-MLX-3bit
majentik/Ornith-1.0-35B-MLX-4bit
majentik/Ornith-1.0-35B-MLX-5bit
majentik/Ornith-1.0-35B-MLX-6bit
majentik/Ornith-1.0-35B-MLX-8bit
majentik/Ornith-1.0-35B-MLX-MXFP4
majentik/Ornith-1.0-35B-MLX-NVFP4 (this repo)

Provenance

Upstream: deepreinforce-ai/Ornith-1.0-35B @ 5df2ed3f675c7beaa490328cc70bb573b65fb660
Quantization: bits=4, mode=nvfp4, group_size=16 (language tower only)
Toolchain: mlx 0.31.2, mlx-lm 0.31.3, mlx-vlm 0.6.3, transformers 5.12.0, huggingface_hub 1.22.0
Republished 2026-07-04 in a runtime-loadable layout; supersedes the 2026-07-02 pipelines.mlx_direct_quantize pack. Full details in PROVENANCE.md in this repo.

License + attribution

Quantized by majentik from deepreinforce-ai/Ornith-1.0-35B. All rights in the original model remain with its authors.

Upstream declares the MIT license via its model-card metadata but ships no LICENSE file, so the full MIT license text is reproduced below with attribution to deepreinforce-ai:

MIT License

Copyright (c) deepreinforce-ai

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.

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Safetensors

Model size

9B params

Tensor type

U32

BF16

MLX

Hardware compatibility

4-bit

Model tree for majentik/Ornith-1.0-35B-MLX-NVFP4

Base model

deepreinforce-ai/Ornith-1.0-35B

Quantized

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