DeepSpeed provides optimization tools that make distributed deep learning training more efficient.

deepspeed.ai
DeepSpeed homepage screenshot

About DeepSpeed

DeepSpeed is a deep learning optimization library for distributed training. It includes system techniques such as ZeRO, 3D parallelism, DeepSpeed-MoE and ZeRO-Infinity, with recent work on offloading, long-sequence training and compiler optimization.

It has been used to train large-scale models including Megatron-Turing NLG and BLOOM, and is listed as integrating with Transformers, Accelerate, Lightning and MosaicML.

Key features

  • ZeRO memory optimization for training large models
  • 3D parallelism for distributed deep learning training
  • Mixture-of-experts training and inference via DeepSpeed-MoE
  • ZenFlow offloading engine for LLM training
  • Long-sequence training for multi-million token sequences
  • Compiler optimization for distributed training via DeepCompile
Best for: Teams training large deep learning or language models across distributed hardware.
Good for
  • Used to train large-scale models including BLOOM and Megatron-Turing NLG
  • Integrates with Transformers, Accelerate, Lightning and MosaicML
  • Publishes ongoing updates on offloading, long-sequence and compiler work

DeepSpeed at a glance

Type
Online tool
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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DeepSpeed FAQ

Which frameworks integrate with DeepSpeed?
Transformers, Accelerate, Lightning and MosaicML are listed as integrations.
Which large models have used DeepSpeed?
Listed examples include Megatron-Turing NLG, Jurassic-1, BLOOM, GLM, YaLM, GPT-NeoX, AlexaTM, Turing NLG and METRO-LM.
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