Source: https://seerepo.com/compare/hpcaitech/ColossalAI/vs/modelscope/DiffSynth-Studio
Markdown source: https://seerepo.com/compare/hpcaitech/ColossalAI/vs/modelscope/DiffSynth-Studio.md
Description: ColossalAI and DiffSynth-Studio share 8 technologies: ModelScope, torch, transformers, peft, safetensors, einops, accelerate, and torchvision. Both are written in Python.

# ColossalAI vs DiffSynth-Studio

ColossalAI and DiffSynth-Studio share 8 technologies: ModelScope, torch, transformers, peft, safetensors, einops, accelerate, and torchvision. Both are written in Python.

- [hpcaitech/ColossalAI](https://seerepo.com/r/hpcaitech/ColossalAI): Making large AI models cheaper, faster and more accessible
- [modelscope/DiffSynth-Studio](https://seerepo.com/r/modelscope/DiffSynth-Studio): Enjoy the magic of Diffusion models!

## What they share and what sets them apart

- In common: ModelScope, torch, transformers, peft, safetensors, einops, accelerate, torchvision
- Only in ColossalAI: FastAPI, uvicorn, chromadb, Hugging Face, anyio, Ray, Gradio, seaborn, matplotlib, Rich, SQLAlchemy, OpenAI, scikit-learn, sentence-transformers, tiktoken, LangChain, triton, diffusers, flash-attn, datasets, timm, bitsandbytes, vLLM, galore-torch, math-verify, sentencepiece, tokenizers, torchaudio, jinja2, markdown-it-py, markupsafe, mdurl, pypdf, unstructured, pillow, jsonlines, annotated-types, pydantic-core, Pydantic, psutil
- Only in DiffSynth-Studio: imageio

## Side by side

| | ColossalAI | DiffSynth-Studio |
|---|---|---|
| Size | 317,403 lines written, 974 code files | 139,261 lines written, 308 code files |
| Who writes it | 0.3% of its commits signed by AI. With Codex and Claude Code | 1.6% of its commits signed by AI. With Gemini CLI and Claude Code |
| Activity | Last push November 6, 2026, 3,887 commits, 41,430 stars | Last push November 9, 2026, 989 commits, 13,353 stars |
| Tests | 505 test files. 1.1% of its code files have a test that imports them | 1 test files |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, ColossalAI or DiffSynth-Studio?

ColossalAI, with 317,403 lines written; DiffSynth-Studio has 139,261.

The proof: [hpcaitech/ColossalAI's code at commit da8f5c2](https://github.com/hpcaitech/ColossalAI/tree/da8f5c2dd56f97d3d23d3d222b114e1a3d4710f5)

### Which has more GitHub stars, ColossalAI or DiffSynth-Studio?

ColossalAI, with 41,430 stars; DiffSynth-Studio has 13,353.

The proof: [hpcaitech/ColossalAI on GitHub](https://github.com/hpcaitech/ColossalAI)

### Which has more tests, ColossalAI or DiffSynth-Studio?

ColossalAI, with 505 test files; DiffSynth-Studio has 1.

The proof: [hpcaitech/ColossalAI's code at commit da8f5c2](https://github.com/hpcaitech/ColossalAI/tree/da8f5c2dd56f97d3d23d3d222b114e1a3d4710f5)

### Which was updated more recently, ColossalAI or DiffSynth-Studio?

DiffSynth-Studio: its last push was on November 9, 2026, and ColossalAI's on November 6, 2026.

The proof: [modelscope/DiffSynth-Studio's commits on GitHub](https://github.com/modelscope/DiffSynth-Studio/commits)

### Which has more commits signed by AI, ColossalAI or DiffSynth-Studio?

DiffSynth-Studio: an AI signed 1.6% of its commits, with Gemini CLI and Claude Code; in ColossalAI, 0.3%.

## Sources

- hpcaitech/ColossalAI: Read on November 6, 2026, at commit da8f5c2 (https://github.com/hpcaitech/ColossalAI/tree/da8f5c2dd56f97d3d23d3d222b114e1a3d4710f5)
- modelscope/DiffSynth-Studio: Read on November 10, 2026, at commit fdad57b (https://github.com/modelscope/DiffSynth-Studio/tree/fdad57bd94d3fbac8a72c44920dd0a23b719ebb9)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.