mlx-optiq
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Qwen3.5-0.8B-OptiQ-4bit

Qwen/Qwen3.5-0.8B, quantized by OptiQ for Apple Silicon; takes images.

visionMTP head
On disk0.9 GB
Memoryabout 2 GB
Capability Score38.42
Imagesyes

Capability Score breakdown

The six metrics behind this model's Capability Score of 38.42, as reported in the model card. Values are compared with uniform 4-bit.

  • This model
  • Uniform 4-bit
Capability Score breakdown: Qwen3.5-0.8B-OptiQ-4bitMMLU: This model 51.1, Uniform 4-bit 48.5; GSM8K: This model 37.3, Uniform 4-bit 31.8; IFEval: This model 55.6, Uniform 4-bit 49.5; BFCL-V3: This model 55.5, Uniform 4-bit 35.0; HumanEval: This model 25.0, Uniform 4-bit 20.1; HashHop: This model 6.0, Uniform 4-bit 13.0MMLU51.148.5GSM8K37.331.8IFEval55.649.5BFCL-V355.535.0HumanEval25.020.1HashHop6.013.0

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/Qwen3.5-0.8B-OptiQ-4bit

OptiQ Code

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

optiq serve --model mlx-community/Qwen3.5-0.8B-OptiQ-4bit
optiq code

OptiQ Lab

optiq lab --model mlx-community/Qwen3.5-0.8B-OptiQ-4bit

Claude Code

optiq run claude -m mlx-community/Qwen3.5-0.8B-OptiQ-4bit

Codex

optiq run codex -m mlx-community/Qwen3.5-0.8B-OptiQ-4bit

OpenCode

optiq run opencode -m mlx-community/Qwen3.5-0.8B-OptiQ-4bit

Mistral Vibe

optiq run vibe -m mlx-community/Qwen3.5-0.8B-OptiQ-4bit

Hermes Agent

optiq run hermes -m mlx-community/Qwen3.5-0.8B-OptiQ-4bit

OpenClaw

optiq run openclaw -m mlx-community/Qwen3.5-0.8B-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/Qwen3.5-0.8B-OptiQ-4bit")
print(generate(model, tokenizer, prompt="Hello", max_tokens=256))

Details

FamilyQwen · Qwen docs
ArchitectureQwen3.5
Base modelQwen/Qwen3.5-0.8B
Size on disk0.9 GB
Memory neededabout 2 GB
Imagesyes, through optiq serve and the Lab
MTP headincluded
Capability Score38.42 (from the model card)
Downloads1,026 in the last month
Updated2026-10-18
Hugging Facemlx-community/Qwen3.5-0.8B-OptiQ-4bit