[DOCS] genAI main article tweaks mstr (#27791)

Author: kblaszczak-intel

docs/articles_en/learn-openvino.rst

@@ -14,7 +14,7 @@ Learn OpenVINO
 
    Interactive Tutorials (Python) <learn-openvino/interactive-tutorials-python>
    Sample Applications (Python & C++) <learn-openvino/openvino-samples>
-   Large Language Model Inference Guide <learn-openvino/llm_inference_guide>
+   Generative AI workflow <learn-openvino/llm_inference_guide>
 
 
 
@@ -29,5 +29,5 @@ as well as an experienced user.
 | :doc:`OpenVINO Samples <learn-openvino/openvino-samples>`
 | The OpenVINO samples (Python and C++) are simple console applications that show how to use specific OpenVINO API features. They can assist you in executing tasks such as loading a model, running inference, querying particular device capabilities, etc.
 
-| :doc:`Large Language Models in OpenVINO <learn-openvino/llm_inference_guide>`
+| :doc:`Generative AI workflow <learn-openvino/llm_inference_guide>`
 | Detailed information on how OpenVINO accelerates Generative AI use cases and what models it supports. This tutorial provides instructions for running Generative AI models using Hugging Face Optimum Intel and Native OpenVINO APIs.

docs/articles_en/learn-openvino/llm_inference_guide.rst

@@ -1,140 +1,106 @@
-Large Language Model Inference Guide
+Generative AI workflow
 ========================================
 
 .. meta::
-   :description: Explore learning materials, including interactive
-                 Python tutorials and sample console applications that explain
-                 how to use OpenVINO features.
+   :description: learn how to use OpenVINO to run generative AI models.
 
 
 .. toctree::
    :maxdepth: 1
    :hidden:
 
-   Run LLMs with Optimum Intel <llm_inference_guide/llm-inference-hf>
-   Run LLMs on OpenVINO GenAI Flavor <llm_inference_guide/genai-guide>
-   Run LLMs on Base OpenVINO <llm_inference_guide/llm-inference-native-ov>
+   Inference with OpenVINO GenAI <llm_inference_guide/genai-guide>
+   Inference with Optimum Intel <llm_inference_guide/llm-inference-hf>
+   Generative AI with Base OpenVINO (not recommended) <llm_inference_guide/llm-inference-native-ov>
    OpenVINO Tokenizers <llm_inference_guide/ov-tokenizers>
 
-Large Language Models (LLMs) like GPT are transformative deep learning networks capable of a
-broad range of natural language tasks, from text generation to language translation. OpenVINO
-optimizes the deployment of these models, enhancing their performance and integration into
-various applications. This guide shows how to use LLMs with OpenVINO, from model loading and
-conversion to advanced use cases.
+
+
+Generative AI is a specific area of Deep Learning models used for producing new and “original”
+data, based on input in the form of image, sound, or natural language text. Due to their
+complexity and size, generative AI pipelines are more difficult to deploy and run efficiently.
+OpenVINO simplifies the process and ensures high-performance integrations, with the following
+options:
+
+.. tab-set::
+
+   .. tab-item:: OpenVINO GenAI
+
+      | - Suggested for production deployment for the supported use cases.
+      | - Smaller footprint and fewer dependencies.
+      | - More optimization and customization options.
+      | - Available in both Python and C++.
+      | - A limited set of supported use cases.
+
+      :doc:`Install the OpenVINO GenAI package <../get-started/install-openvino/install-openvino-genai>`
+      and run generative models out of the box. With custom
+      API and tokenizers, among other components, it manages the essential tasks such as the
+      text generation loop, tokenization, and scheduling, offering ease of use and high
+      performance.
+
+   .. tab-item:: Hugging Face integration
+
+      | - Suggested for prototyping and, if the use case is not covered by OpenVINO GenAI, production.
+      | - Bigger footprint and more dependencies.
+      | - Limited customization due to Hugging Face dependency.
+      | - Not usable for C++ applications.
+      | - A very wide range of supported models.
+
+      Using Optimum Intel is a great way to experiment with different models and scenarios,
+      thanks to a simple interface for the popular API and infrastructure offered by Hugging Face.
+      It also enables weight compression with
+      `Neural Network Compression Framework (NNCF) <https://github.com/openvinotoolkit/nncf>`__,
+      as well as conversion on the fly. For integration with the final product it may offer
+      lower performance, though.
+
+`Check out the GenAI Quick-start Guide [PDF] <https://docs.openvino.ai/2024/_static/download/GenAI_Quick_Start_Guide.pdf>`__
 
 The advantages of using OpenVINO for LLM deployment:
 
-* **OpenVINO offers optimized LLM inference**:
-  provides a full C/C++ API, leading to faster operation than Python-based runtimes; includes a
-  Python API for rapid development, with the option for further optimization in C++.
-* **Compatible with diverse hardware**:
-  supports CPUs, GPUs, and neural accelerators across ARM and x86/x64 architectures, integrated
-  Intel® Processor Graphics, discrete Intel® Arc™ A-Series Graphics, and discrete Intel® Data
-  Center GPU Flex Series; features automated optimization to maximize performance on target
-  hardware.
-* **Requires fewer dependencies**:
-  than frameworks like Hugging Face and PyTorch, resulting in a smaller binary size and reduced
-  memory footprint, making deployments easier and updates more manageable.
-* **Provides compression and precision management techniques**:
-  such as 8-bit and 4-bit weight compression, including embedding layers, and storage format
-  reduction. This includes fp16 precision for non-compressed models and int8/int4 for compressed
-  models, like GPTQ models from `Hugging Face <https://huggingface.co/models>`__.
-* **Supports a wide range of deep learning models and architectures**:
-  including text, image, and audio generative models like Llama 2, MPT, OPT, Stable Diffusion,
-  Stable Diffusion XL. This enables the development of multimodal applications, allowing for
-  write-once, deploy-anywhere capabilities.
-* **Enhances inference capabilities**:
-  fused inference primitives such as Scaled Dot Product Attention, Rotary Positional Embedding,
-  Group Query Attention, and Mixture of Experts. It also offers advanced features like in-place
-  KV-cache, dynamic quantization, KV-cache quantization and encapsulation, dynamic beam size
-  configuration, and speculative sampling.
-* **Provides stateful model optimization**:
-  models from the Hugging Face Transformers are converted into a stateful form, optimizing
-  inference performance and memory usage in long-running text generation tasks by managing past
-  KV-cache tensors more efficiently internally. This feature is automatically activated for many
-  supported models, while unsupported ones remain stateless. Learn more about the
-  :doc:`Stateful models and State API <../openvino-workflow/running-inference/stateful-models>`.
-
-OpenVINO offers three main paths for Generative AI use cases:
-
-* **Hugging Face**: use OpenVINO as a backend for Hugging Face frameworks (transformers,
-  diffusers) through the `Optimum Intel <https://huggingface.co/docs/optimum/intel/inference>`__
-  extension.
-* **OpenVINO GenAI Flavor**: use OpenVINO GenAI APIs (Python and C++).
-* **Base OpenVINO**: use OpenVINO native APIs (Python and C++) with
-  `custom pipeline code <https://github.com/openvinotoolkit/openvino.genai>`__.
-
-In both cases, the OpenVINO runtime is used for inference, and OpenVINO tools are used for
-optimization. The main differences are in footprint size, ease of use, and customizability.
-
-The Hugging Face API is easy to learn, provides a simple interface and hides the complexity of
-model initialization and text generation for a better developer experience. However, it has more
-dependencies, less customization, and cannot be ported to C/C++.
-
-The OpenVINO GenAI Flavor reduces the complexity of LLMs implementation by
-automatically managing essential tasks like the text generation loop, tokenization,
-and scheduling. The Native OpenVINO API provides a more hands-on experience,
-requiring manual setup of these functions. Both methods are designed to minimize dependencies
-and the overall application footprint and enable the use of generative models in C++ applications.
-
-It is recommended to start with Hugging Face frameworks to experiment with different models and
-scenarios. Then the model can be used with OpenVINO APIs if it needs to be optimized
-further. Optimum Intel provides interfaces that enable model optimization (weight compression)
-using `Neural Network Compression Framework (NNCF) <https://github.com/openvinotoolkit/nncf>`__,
-and export models to the OpenVINO model format for use in native API applications.
-
-Proceed to run LLMs with:
+.. dropdown:: Fewer dependencies and smaller footprint
+   :animate: fade-in-slide-down
+   :color: secondary
+
+   Less bloated than frameworks such as Hugging Face and PyTorch, with a smaller binary size and reduced
+   memory footprint, makes deployments easier and updates more manageable.
+
+.. dropdown:: Compression and precision management
+   :animate: fade-in-slide-down
+   :color: secondary
+
+   Techniques such as 8-bit and 4-bit weight compression, including embedding layers, and storage
+   format reduction. This includes fp16 precision for non-compressed models and int8/int4 for
+   compressed models, like GPTQ models from `Hugging Face <https://huggingface.co/models>`__.
+
+.. dropdown:: Enhanced inference capabilities
+   :animate: fade-in-slide-down
+   :color: secondary
+
+   Advanced features like in-place KV-cache, dynamic quantization, KV-cache quantization and
+   encapsulation, dynamic beam size configuration, and speculative sampling, and more are
+   available.
+
+.. dropdown:: Stateful model optimization
+   :animate: fade-in-slide-down
+   :color: secondary
+
+   Models from the Hugging Face Transformers are converted into a stateful form, optimizing
+   inference performance and memory usage in long-running text generation tasks by managing past
+   KV-cache tensors more efficiently internally. This feature is automatically activated for
+   many supported models, while unsupported ones remain stateless. Learn more about the
+   :doc:`Stateful models and State API <../openvino-workflow/running-inference/stateful-models>`.
+
+.. dropdown:: Optimized LLM inference
+   :animate: fade-in-slide-down
+   :color: secondary
+
+   Includes a Python API for rapid development and C++ for further optimization, offering
+   better performance than Python-based runtimes.
+
+
+Proceed to guides on:
 
-* :doc:`Hugging Face and Optimum Intel <./llm_inference_guide/llm-inference-hf>`
 * :doc:`OpenVINO GenAI Flavor <./llm_inference_guide/genai-guide>`
-* :doc:`Native OpenVINO API <./llm_inference_guide/llm-inference-native-ov>`
-
-The table below summarizes the differences between Hugging Face and the native OpenVINO API
-approaches.
-
-.. dropdown:: Differences between Hugging Face and the native OpenVINO API
-
-   .. list-table::
-      :widths: 20 25 55
-      :header-rows: 1
-
-      * -
-        - Hugging Face through OpenVINO
-        - OpenVINO Native API
-      * - Model support
-        - Supports transformer-based models such as LLMs
-        - Supports all model architectures from most frameworks
-      * - APIs
-        - Python (Hugging Face API)
-        - Python, C++ (OpenVINO API)
-      * - Model Format
-        - Source Framework / OpenVINO
-        - Source Framework / OpenVINO
-      * - Inference code
-        - Hugging Face based
-        - Custom inference pipelines
-      * - Additional dependencies
-        - Many Hugging Face dependencies
-        - Lightweight (e.g. numpy, etc.)
-      * - Application footprint
-        - Large
-        - Small
-      * - Pre/post-processing and glue code
-        - Provided through high-level Hugging Face APIs
-        - Must be custom implemented (see OpenVINO samples and notebooks)
-      * - Performance
-        - Good, but less efficient compared to native APIs
-        - Inherent speed advantage with C++, but requires hands-on optimization
-      * - Flexibility
-        - Constrained to Hugging Face API
-        - High flexibility with Python and C++; allows custom coding
-      * - Learning Curve and Effort
-        - Lower learning curve; quick to integrate
-        - Higher learning curve; requires more effort in integration
-      * - Ideal Use Case
-        - Ideal for quick prototyping and Python-centric projects
-        - Best suited for high-performance, resource-optimized production environments
-      * - Model Serving
-        - Paid service, based on CPU/GPU usage with Hugging Face
-        - Free code solution, run script for own server; costs may incur for cloud services
-          like AWS but generally cheaper than Hugging Face rates
+* :doc:`Hugging Face and Optimum Intel <./llm_inference_guide/llm-inference-hf>`
+
+

docs/articles_en/learn-openvino/llm_inference_guide/genai-guide-npu.rst

@@ -1,4 +1,4 @@
-Run LLMs with OpenVINO GenAI Flavor on NPU
+Inference with OpenVINO GenAI
 ==========================================
 
 .. meta::