IPEX-LLM is a PyTorch library for running LLM on Intel CPU and GPU (e.g., local PC with iGPU, discrete GPU such as Arc, Flex and Max) with very low latency¹.

• [2024/06] We added experimental NPU support for Intel Core Ultra processors; see the examples here.
• [2024/06] We added extensive support of pipeline parallel inference, which makes it easy to run large-sized LLM using 2 or more Intel GPUs (such as Arc).
• [2024/06] We added support for running RAGFlow with ipex-llm on Intel GPU.
• [2024/05] You can now easily run ipex-llm inference, serving and finetuning using the Docker images.
• [2024/05] You can now install ipex-llm on Windows using just "one command".
• [2024/05] ipex-llm now supports Axolotl for LLM finetuning on Intel GPU; see the quickstart here.

See the Token Generation Speed on Intel Core Ultra and Intel Arc GPU below¹ (and refer to [2][3][4] for more details).

You may follow the Benchmarking Guide to run ipex-llm performance benchmark yourself.

See demos of running local LLMs on Intel Iris iGPU, Intel Core Ultra iGPU, single-card Arc GPU, or multi-card Arc GPUs using ipex-llm below.

Intel Iris iGPU	Intel Core Ultra iGPU	Intel Arc dGPU	2-Card Intel Arc dGPUs
llama.cpp (Phi-3-mini Q4_0)	Ollama (Mistral-7B Q4_K)	TextGeneration-WebUI (Llama3-8B FP8)	FastChat (QWen1.5-32B FP6)

Please see the Perplexity result below (tested on Wikitext dataset using the script here).

• GPU Inference in C++: running llama.cpp, ollama, OpenWebUI, etc., with ipex-llm on Intel GPU
• GPU Inference in Python : running HuggingFace transformers, LangChain, LlamaIndex, ModelScope, etc. with ipex-llm on Intel GPU
• vLLM on GPU: running vLLM serving with ipex-llm on Intel GPU
• vLLM on CPU: running vLLM serving with ipex-llm on Intel CPU
• FastChat on GPU: running FastChat serving with ipex-llm on Intel GPU
• VSCode on GPU: running and developing ipex-llm applications in Python using VSCode on Intel GPU

• llama.cpp: running llama.cpp (using C++ interface of ipex-llm as an accelerated backend for llama.cpp) on Intel GPU
• Ollama: running ollama (using C++ interface of ipex-llm as an accelerated backend for ollama) on Intel GPU
• Llama 3 with llama.cpp and ollama: running Llama 3 on Intel GPU using llama.cpp and ollama with ipex-llm
• vLLM: running ipex-llm in vLLM on both Intel GPU and CPU
• FastChat: running ipex-llm in FastChat serving on on both Intel GPU and CPU
• Serving on multiple Intel GPUs: running ipex-llm serving on multiple Intel GPUs by leveraging DeepSpeed AutoTP and FastAPI
• Text-Generation-WebUI: running ipex-llm in oobabooga WebUI
• Axolotl: running ipex-llm in Axolotl for LLM finetuning
• Benchmarking: running (latency and throughput) benchmarks for ipex-llm on Intel CPU and GPU

• Local RAG: running LangChain-Chatchat (Knowledge Base QA using RAG pipeline) with ipex-llm
• Coding copilot: running Continue (coding copilot in VSCode) with ipex-llm
• Open WebUI: running Open WebUI with ipex-llm
• PrivateGPT: running PrivateGPT to interact with documents with ipex-llm
• Dify platform: running ipex-llm in Dify(production-ready LLM app development platform)
• RAGFlow: running RAGFlow (an open-source RAG engine) with ipex-llm

• Windows GPU: installing ipex-llm on Windows with Intel GPU
• Linux GPU: installing ipex-llm on Linux with Intel GPU
• For more details, please refer to the full installation guide

• Low bit inference
  • INT4 inference: INT4 LLM inference on Intel GPU and CPU
  • FP8/FP4 inference: FP8 and FP4 LLM inference on Intel GPU
  • INT8 inference: INT8 LLM inference on Intel GPU and CPU
  • INT2 inference: INT2 LLM inference (based on llama.cpp IQ2 mechanism) on Intel GPU
• FP16/BF16 inference
  • FP16 LLM inference on Intel GPU, with possible self-speculative decoding optimization
  • BF16 LLM inference on Intel CPU, with possible self-speculative decoding optimization
• Distributed inference
  • Pipeline Parallel inference on Intel GPU
  • DeepSpeed AutoTP inference on Intel GPU
• Save and load
  • Low-bit models: saving and loading ipex-llm low-bit models (INT4/FP4/FP6/INT8/FP8/FP16/etc.)
  • GGUF: directly loading GGUF models into ipex-llm
  • AWQ: directly loading AWQ models into ipex-llm
  • GPTQ: directly loading GPTQ models into ipex-llm
• Finetuning
  • LLM finetuning on Intel GPU, including LoRA, QLoRA, DPO, QA-LoRA and ReLoRA
  • QLoRA finetuning on Intel CPU
• Integration with community libraries
  • HuggingFace transformers
  • Standard PyTorch model
  • LangChain
  • LlamaIndex
  • DeepSpeed-AutoTP
  • Axolotl
  • HuggingFace PEFT
  • HuggingFace TRL
  • AutoGen
  • ModeScope
• Tutorials

• HuggingFace Transformers-style API (Auto Classes)
• API for arbitrary PyTorch Model

• FAQ & Trouble Shooting

Over 50 models have been optimized/verified on ipex-llm, including LLaMA/LLaMA2, Mistral, Mixtral, Gemma, LLaVA, Whisper, ChatGLM2/ChatGLM3, Baichuan/Baichuan2, Qwen/Qwen-1.5, InternLM and more; see the list below.

• Please report a bug or raise a feature request by opening a Github Issue
• Please report a vulnerability by opening a draft GitHub Security Advisory