We just shipped DFlash speculator checkpoints for Qwen3.5-397B-A17B.
On math_reasoning: ~5 out of 7 draft tokens accepted on average. On code (HumanEval): ~4.5 out of 7.
Both checkpoints trained with the open source Speculators library from
@vllm_project. Apache 2.0. Validated on NVIDIA H200.
One flag to enable in vLLM:
--speculative-config '{
"model": "RedHatAI/Qwen3.5-397B-A17B-speculator.dflash",
"num_speculative_tokens": 7,
"method": "dflash"
}'
Check it out: