mlx-optiq
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Qwen3.5-2B-OptiQ-4bit

Qwen/Qwen3.5-2B, quantized by OptiQ for Apple Silicon; takes images.

visionMTP head
On disk2.2 GB
Memoryabout 4 GB
Capability Score50.41
Imagesyes

Capability Score breakdown

The six metrics behind this model's Capability Score of 50.41, as reported in the model card. Values are compared with uniform 4-bit.

  • This model
  • Uniform 4-bit
Capability Score breakdown: Qwen3.5-2B-OptiQ-4bitMMLU: This model 58.9, Uniform 4-bit 58.6; GSM8K: This model 55.6, Uniform 4-bit 56.4; IFEval: This model 59.7, Uniform 4-bit 58.6; BFCL-V3: This model 77.0, Uniform 4-bit 74.0; HumanEval: This model 51.2, Uniform 4-bit 39.6; HashHop: This model 0.0, Uniform 4-bit 0.0MMLU58.958.6GSM8K55.656.4IFEval59.758.6BFCL-V377.074.0HumanEval51.239.6HashHop0.00.0

Use it

Install

pip install mlx-optiq

Serve it

An OpenAI- and Anthropic-compatible server on this Mac. Every app below can use it.

optiq serve --model mlx-community/Qwen3.5-2B-OptiQ-4bit

OptiQ Code

The terminal coding agent uses whatever model optiq serve is running.

optiq serve --model mlx-community/Qwen3.5-2B-OptiQ-4bit
optiq code

OptiQ Lab

optiq lab --model mlx-community/Qwen3.5-2B-OptiQ-4bit

Claude Code

optiq run claude -m mlx-community/Qwen3.5-2B-OptiQ-4bit

Codex

optiq run codex -m mlx-community/Qwen3.5-2B-OptiQ-4bit

OpenCode

optiq run opencode -m mlx-community/Qwen3.5-2B-OptiQ-4bit

Mistral Vibe

optiq run vibe -m mlx-community/Qwen3.5-2B-OptiQ-4bit

Hermes Agent

optiq run hermes -m mlx-community/Qwen3.5-2B-OptiQ-4bit

OpenClaw

optiq run openclaw -m mlx-community/Qwen3.5-2B-OptiQ-4bit

optiq run starts optiq serve if it is not running, sets the agent up for this session only, and stops the server when the agent exits.

mlx-lm, text only

from mlx_lm import load, generate

model, tokenizer = load("mlx-community/Qwen3.5-2B-OptiQ-4bit")
print(generate(model, tokenizer, prompt="Hello", max_tokens=256))

Details

FamilyQwen · Qwen docs
ArchitectureQwen3.5
Base modelQwen/Qwen3.5-2B
Size on disk2.2 GB
Memory neededabout 4 GB
Imagesyes, through optiq serve and the Lab
MTP headincluded
Capability Score50.41 (from the model card)
Downloads921 in the last month
Updated2026-10-18
Hugging Facemlx-community/Qwen3.5-2B-OptiQ-4bit