Description

The dense Qwen3.5 architecture (model_type: qwen3_5) is not currently supported by AF-M. Only the MoE variant (qwen3_5_moe) works.

Steps to Reproduce

afm mlx -m mlx-community/Qwen3.5-27B-8bit -p 8001

Error

Error starting MLX server: loadFailed("mlx-community/Qwen3.5-27B-8bit: Unsupported model type: qwen3_5") 

Expected Behavior

AF-M should load dense Qwen3.5 models (27B, etc.) the same way it loads the MoE variants (122B-A10B, 35B-A3B).

Environment

• AF-M version: v0.9.5-cd2941e (afm-next via Homebrew)
• macOS 26 on Mac Studio M3 Ultra
• Model: mlx-community/Qwen3.5-27B-8bit (config.json has model_type: qwen3_5, architectures: ['Qwen3_5ForConditionalGeneration'])

Notes

The MoE variants work perfectly — Qwen3.5-122B-A10B-4bit and Qwen3.5-35B-A3B-4bit both load and run well. The Scripts/patches/ directory has Qwen3_5MoE.swift but no corresponding Qwen3_5.swift for the dense architecture.