This repository contains a comprehensive database of over 650 machine learning (ML) system design case studies from more than 100 companies. These innovative use cases showcase how leading organizations, including Netflix, Airbnb, and Doordash, are leveraging AI to enhance their products and processes.

The sheer scale and diversity of these case studies provide valuable insights into various ML applications. You'll discover the creative approaches and methodologies employed by top companies in the industry to drive business success.

Credit for this remarkable compilation goes to Evidently AI. This repository is based on their original post, which can be found here: [link].

Thank you, Evidently AI, for providing such a valuable resource for the machine learning community!

The database includes:

Company Highlights

| Company | Industry | Short Description | Title | Tag | Year | Link |

|---|---|---|---|---|---|---|

| Ramp | Fintech and banking | Better classify customers | From RAG to Richness: How Ramp Revamped Industry Classification | RAG,LLM,ops | 2026 | https://engineering.ramp.com/industry_classification |

| Social platforms | Generate diverse and engaging homefeed | Advancements in Embedding-Based Retrieval at Pinterest Homefeed | recommender system | 2026 | https://medium.com/pinterest-engineering/advancements-in-embedding-based-retrieval-at-pinterest-homefeed-d7d7971a409e |

AI-Powered Innovations

| Company | Industry | Short Description | Title | Tag | Year | Link |

|---|---|---|---|---|---|---|

| Airbnb | Travel,E-commerce and retail | Accelerate code migration | Accelerating Large-Scale Test Migration with LLMs | ops,LLM | 2026 | https://medium.com/airbnb-engineering/accelerating-large-scale-test-migration-with-llms-9565c208023b |

| Uber | Delivery and mobility | Give automatic code review | uReview: Scalable, Trustworthy GenAI for Code Review at Uber | ops,LLM,generative AI | 2026 | https://www.uber.com/en-IN/blog/ureview/ |

Search and Knowledge Access

| Company | Industry | Short Description | Title | Tag | Year | Link |

|---|---|---|---|---|---|---|

| Dropbox | Tech | Improve knowledge access | Building Dash: How RAG and AI agents help us meet the needs of businesses | search,LLM,RAG,AI agents | 2026 | https://dropbox.tech/machine-learning/building-dash-rag-multi-step-ai-agents-business-users |

| Social platforms | AI-powered job search | Building the next generation of job search at LinkedIn | search,LLM | 2026 | https://www.linkedin.com/blog/engineering/ai/building-the-next-generation-of-job-search-at-linkedin |

Real-World Applications

| Company | Industry | Short Description | Title | Tag | Year | Link |

|---|---|---|---|---|---|---|

| Zillow | E-commerce and retail | Improve real estate support | Revolutionizing the Real Estate Experience with LLMs: StreetEasy’s AI Journey | LLM,product feature | 2026 | https://www.zillow.com/tech/revolutionizing-the-real-estate-experience-with-llms-streeteasys-ai-journey/ |

By exploring these case studies, you'll gain valuable insights into the real-world applications of AI in mobile apps.