Kept in BF16
The following modules were excluded from quantization: lm_head, embeddings,
the vision tower (model.visual.*), the Gated DeltaNet linear-attention layers
(linear_attn.*), MoE routers (mlp.gate), the shared-expert gate
(shared_expert_gate) and the MTP head (mtp.*). The ignore list matches the
reference RedHatAI/Qwen3.6-35B-A3B-FP8-dynamic quantization.
Recipe
from transformers import AutoProcessor, Qwen3_5MoeForConditionalGeneration
from llmcompressor import oneshot
from llmcompressor.modifiers.quantization import QuantizationModifier
MODEL_ID = "joyfox/JoyFox-Qwen3.6-35B-A3B-RP-Aggressive"
model = Qwen3_5MoeForConditionalGeneration.from_pretrained(MODEL_ID, dtype="auto")
processor = AutoProcessor.from_pretrained(MODEL_ID)
recipe = QuantizationModifier(
targets="Linear",
scheme="FP8_DYNAMIC",
ignore=[
"re:.*lm_head",
"re:visual.*",
"re:model.visual.*",
"re:.*mlp.gate$",
"re:.*embed_tokens$",
"re:.*shared_expert_gate$",
"re:.*linear_attn.*",
"re:^mtp.*",
],
)
oneshot(model=model, recipe=recipe)
model.save_pretrained("out")
processor.save_pretrained("out")
Serving with vLLM
vllm serve cloud19/JoyFox-Qwen3.6-35B-A3B-RP-Aggressive-FP8-Dynamic \
--served-model-name joyfox \
--enable-chunked-prefill \
--max-model-len 16384 --kv-cache-dtype fp8 \
--limit-mm-per-prompt '{"image": 0, "audio": 0, "video": 0}' \
--default-chat-template-kwargs '{"enable_thinking": false}'
Notes:
- Chunked prefill is required. The hybrid attention stack (Gated DeltaNet
linear-attention layers) uses vLLM's mamba cache in mode
align; passing
--no-enable-chunked-prefill makes the engine refuse to start.
- The MTP head is shipped as
model_mtp.safetensors, but speculative decoding
is intentionally not used here.
- Thinking (
<think>) is disabled at the chat-template level via
enable_thinking: false.