Qwen-AgentWorld-35B-A3B — v130 CPA merged

This is Qwen/Qwen-AgentWorld-35B-A3B with the v130 CPA LoRA adapter merged into the weights (full bf16, ready to load with transformers).

Provenance

  • Base model: Qwen/Qwen-AgentWorld-35B-A3B (Qwen3.5-MoE, 35B total / A3B active, bf16)
  • Adapter: qwen-cpa-v130-pretrain-fix — a rank-16 LoRA trained with MLX-LM (scale=32, dropout=0.05, 3300 iters, lr 1e-6), covering the top 12 decoder layers (28–39).

The adapter was trained in the MLX format and converted to PEFT before merging (adapter_config.json uses r=16, lora_alpha=512 so that scaling = alpha/r = 32 matches the MLX multiplier).

Merged modules

Deltas were folded in at fp32 precision, then cast back to bf16:

Group Modules
Full-attention layers (31, 35, 39) self_attn.{q,k,v,o}_proj
Linear-attention layers linear_attn.{in_proj_a,in_proj_b,in_proj_qkv,in_proj_z,out_proj}
MoE routing / shared expert (all 12 layers) mlp.gate, mlp.shared_expert.{gate,up,down}_proj, mlp.shared_expert_gate
Fused routed experts (all 12 layers) mlp.experts.gate_up_proj, mlp.experts.down_proj

For a plain nn.Linear the delta is scale · (lora_a @ lora_b)ᵀ; for the fused per-expert MoE weights it is scale · bmm(lora_b, lora_a), with the gate_proj/up_proj halves written into the two row-blocks of the fused gate_up_proj.

Usage

from transformers import AutoModelForCausalLM, AutoTokenizer
tok = AutoTokenizer.from_pretrained("junaidali/qwenadapters")
model = AutoModelForCausalLM.from_pretrained(
    "junaidali/qwenadapters", torch_dtype="bfloat16", device_map="auto",
    trust_remote_code=True)

Policy note from the training manifest: v130 CPA SFT candidate — benchmark before deploy.

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