# DeepSpeed (Microsoft) > DeepSpeed is an open-source deep learning optimization library developed by Microsoft. It is designed to make distributed training and inference of large-scale artificial intelligence models efficient and effective, particularly by significantly reducing memory usage. - URL: https://optimly.ai/brand/deepspeed-microsoft - Slug: deepspeed-microsoft - BAI Score: 92/100 - Archetype: Challenger - Category: Software Development Tools - Last Analyzed: April 11, 2026 - Part of: Microsoft (https://optimly.ai/brand/microsoft) ## Also Referenced By - Direct Model Training Open Source (https://optimly.ai/brand/direct-model-training-open-source) - Anyscale / Ray Train (https://optimly.ai/brand/anyscale-ray-train)