DeepSpeed vs LlamaFactory

DeepSpeed and LlamaFactory share 9 technologies: accelerate, sentencepiece, torch, transformers, einops, safetensors, liger-kernel, torchvision, and Pydantic. Both are written in Python.

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What they share and what sets them apart

deepspeedai

DeepSpeed

DeepSpeed is a deep learning optimization library that makes distributed training and inference easy, efficient, and effective.

Python43.3kRead on November 6, 2026, at commit f47dc3eWhat is DeepSpeed built with?

Only in DeepSpeed

In common

hiyouga

LlamaFactory

Unified Efficient Fine-Tuning of 100+ LLMs & VLMs (ACL 2024)

Python75.9kRead on November 4, 2026, at commit 702005cWhat is LlamaFactory built with?

Only in LlamaFactory

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
DeepSpeed247,033 lines written760 code files
LlamaFactory62,624 lines written194 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
DeepSpeed2.7% of its commits signed by AIWith GitHub Copilot, Cursor, and Claude Code
LlamaFactory1.6% of its commits signed by AIWith Gemini CLI, Claude Code, GitHub Copilot, and Cursor
ActivityFrom GitHub and its history, on the day SeeRepo read it.
DeepSpeedLast push November 6, 20263,619 commits43,302 stars
LlamaFactoryLast push November 4, 20262,769 commits75,890 stars
TestsThe files that test the code, and the share of code files a test imports.
DeepSpeed395 test files33% of its code files have a test that imports them
LlamaFactory62 test files38.1% of its code files have a test that imports them

Frequently asked questions

Which is bigger, DeepSpeed or LlamaFactory?
DeepSpeed, with 247,033 lines written; LlamaFactory has 62,624.

The proof: deepspeedai/DeepSpeed's code at commit f47dc3e

Which has more GitHub stars, DeepSpeed or LlamaFactory?
LlamaFactory, with 75,890 stars; DeepSpeed has 43,302.

The proof: hiyouga/LlamaFactory on GitHub

Which has more tests, DeepSpeed or LlamaFactory?
DeepSpeed, with 395 test files; LlamaFactory has 62.

The proof: deepspeedai/DeepSpeed's code at commit f47dc3e

Which was updated more recently, DeepSpeed or LlamaFactory?
DeepSpeed: its last push was on November 6, 2026, and LlamaFactory's on November 4, 2026.

The proof: deepspeedai/DeepSpeed's commits on GitHub

Which has more commits signed by AI, DeepSpeed or LlamaFactory?
DeepSpeed: an AI signed 2.7% of its commits, with GitHub Copilot, Cursor, and Claude Code; in LlamaFactory, 1.6%.

The proof: the commits each tool signed in deepspeedai/DeepSpeed

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