{"slug": "dflash-for-local-llm-inference", "title": "DFlash for Local LLM Inference", "summary": "Z-Lab's DFlash technique uses diffusion models to accelerate LLM token generation through speculative decoding, achieving up to 123 tokens per second for code generation in tests with Qwen 3 8B on llama-cpp, though gains are less pronounced for non-code text and require available VRAM.", "body_md": "Currently LLMs generate text in an **autoregressive** way—one token after another. Each successive token depends on the tokens before it. However with **DFlash**, an innovation created by Z-Lab, we can use **diffusion** and speed up LLM token generation.\n\nWith DFlash, a diffusion model is used to speculate what tokens the underlying LLM will generate next. Then if those tokens are correct, they are accepted—this is the same as other forms of **speculative decoding**, like MTP, but with a diffusion model as well.\n\nI downloaded the **raw weights** of Qwen 3 8B and quantized them along with a DFlash model. I found:\n\n• Using DFlash in `llama-cpp`\n\ngives a clear speedup generating code—for example, having the model generate Java code went from 58 to 123 tokens per second.\n\n• Other text, like thinking text or informational text, is sped up slightly but not as much—it seems no better than MTP in this case.\n\nSo with DFlash, we have a new **state of the art** for **code generation**. Unfortunately, DFlash uses VRAM, so it works best on models that are not filling up your GPU. Basically it seems to make models that are already fast (because they fit on the GPU) even faster.", "url": "https://wpnews.pro/news/dflash-for-local-llm-inference", "canonical_source": "https://www.dotnetperls.com/2026_7_2_dflash-local-llm-inference", "published_at": "2026-07-02 07:00:00+00:00", "updated_at": "2026-07-20 15:27:57.886198+00:00", "lang": "en", "topics": ["large-language-models", "generative-ai", "ai-research", "ai-infrastructure"], "entities": ["Z-Lab", "DFlash", "Qwen 3 8B", "llama-cpp"], "alternates": {"html": "https://wpnews.pro/news/dflash-for-local-llm-inference", "markdown": "https://wpnews.pro/news/dflash-for-local-llm-inference.md", "text": "https://wpnews.pro/news/dflash-for-local-llm-inference.txt", "jsonld": "https://wpnews.pro/news/dflash-for-local-llm-inference.jsonld"}}