Instructions to use majentik/Qwen2.5-1.5B-Instruct-MLX-4bit with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use majentik/Qwen2.5-1.5B-Instruct-MLX-4bit with MLX:

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

# Generate text with mlx-lm
from mlx_lm import load, generate

model, tokenizer = load("majentik/Qwen2.5-1.5B-Instruct-MLX-4bit")

prompt = "Write a story about Einstein"
messages = [{"role": "user", "content": prompt}]
prompt = tokenizer.apply_chat_template(
    messages, add_generation_prompt=True
)

text = generate(model, tokenizer, prompt=prompt, verbose=True)

Notebooks
Google Colab
Kaggle
Local Apps Settings
LM Studio

How to use majentik/Qwen2.5-1.5B-Instruct-MLX-4bit 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/Qwen2.5-1.5B-Instruct-MLX-4bit"

Configure the model in Pi

# Install Pi:
npm install -g @earendil-works/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/Qwen2.5-1.5B-Instruct-MLX-4bit"
        }
      ]
    }
  }
}

Run Pi

# Start Pi in your project directory:
pi

MLX LM

How to use majentik/Qwen2.5-1.5B-Instruct-MLX-4bit with MLX LM:

Generate or start a chat session

# Install MLX LM
uv tool install mlx-lm
# Interactive chat REPL
mlx_lm.chat --model "majentik/Qwen2.5-1.5B-Instruct-MLX-4bit"

Run an OpenAI-compatible server

# Install MLX LM
uv tool install mlx-lm
# Start the server
mlx_lm.server --model "majentik/Qwen2.5-1.5B-Instruct-MLX-4bit"
# Calling the OpenAI-compatible server with curl
curl -X POST "http://localhost:8000/v1/chat/completions" \
   -H "Content-Type: application/json" \
   --data '{
     "model": "majentik/Qwen2.5-1.5B-Instruct-MLX-4bit",
     "messages": [
       {"role": "user", "content": "Hello"}
     ]
   }'

Hermes Agent

How to use majentik/Qwen2.5-1.5B-Instruct-MLX-4bit 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/Qwen2.5-1.5B-Instruct-MLX-4bit"

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/Qwen2.5-1.5B-Instruct-MLX-4bit

Run Hermes

hermes

Atomic Chat

OpenClaw

How to use majentik/Qwen2.5-1.5B-Instruct-MLX-4bit 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/Qwen2.5-1.5B-Instruct-MLX-4bit"

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/Qwen2.5-1.5B-Instruct-MLX-4bit" \
  --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"

Qwen2.5-1.5B-Instruct-MLX-4bit / README.md

majentik

DWQ pilot: Qwen2.5-1.5B MLX pack family

75f497e verified about 2 months ago

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metadata

license: apache-2.0
base_model: Qwen/Qwen2.5-1.5B-Instruct
pipeline_tag: text-generation
library_name: mlx
tags:
  - mlx
  - quantized
  - qwen2

Qwen2.5-1.5B-Instruct-MLX-4bit

Plain affine 4-bit (group-size 32) MLX quantization of Qwen/Qwen2.5-1.5B-Instruct. This is the baseline sibling of the DWQ pack — for higher quality at the same size and bit-width, use the DWQ variant (perplexity 9.45 vs 9.86 here).

Variants

Variant	Size	Status
Qwen2.5-1.5B-Instruct-MLX-8bit	1.5 GB	teacher
Qwen2.5-1.5B-Instruct-MLX-4bit	0.93 GB	this repo — plain affine 4-bit (gs32)
Qwen2.5-1.5B-Instruct-MLX-4bit-DWQ	0.93 GB	DWQ (recommended)

Reproduce

python -m mlx_lm convert --hf-path Qwen/Qwen2.5-1.5B-Instruct \
  --mlx-path Qwen2.5-1.5B-Instruct-MLX-4bit -q --q-bits 4 --q-group-size 32

Group-size 32 per docs/quantization-policy.md rule 1 (doubles tunable scale/bias params at low bit width).

Usage

pip install mlx-lm
python -m mlx_lm generate --model majentik/Qwen2.5-1.5B-Instruct-MLX-4bit \
  --prompt "The capital of France is"

License

Apache-2.0, inherited from the base model Qwen/Qwen2.5-1.5B-Instruct.