ai-engineering-from-scratch vs vllm

ai-engineering-from-scratch and vllm share 10 technologies: OpenAI, tokenizers, torchaudio, transformers, torch, torchvision, tiktoken, MCP, datasets, and pillow. Both are written in Python.

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What they share and what sets them apart

Only in ai-engineering-from-scratch

In common

vllm-project

vllm

A high-throughput and memory-efficient inference and serving engine for LLMs

Python96.3kRead on November 4, 2026, at commit 75f6761What is vllm built with?

Only in vllm

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
ai-engineering-from-scratch506,014 lines written2,340 code files
vllm2,375,117 lines written3,289 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.
ai-engineering-from-scratch0.8% of its commits signed by AIWith Claude Code and Devin
vllm12.8% of its commits signed by AIWith Claude Code, Codex, Gemini CLI, Cursor, GitHub Copilot, Devin, Mistral Vibe, CodeRabbit, Factory, and Qwen Code
ActivityFrom GitHub and its history, on the day SeeRepo read it.
ai-engineering-from-scratchLast push November 4, 20262,431 commits76,859 stars
vllmLast push November 4, 202624,593 commits96,302 stars
TestsThe files that test the code, and the share of code files a test imports.
ai-engineering-from-scratch781 test files17.3% of its code files have a test that imports them
vllm2,419 test files60.2% of its code files have a test that imports them

Frequently asked questions

Which is bigger, ai-engineering-from-scratch or vllm?
vllm, with 2,375,117 lines written; ai-engineering-from-scratch has 506,014.

The proof: vllm-project/vllm's code at commit 75f6761

Which has more GitHub stars, ai-engineering-from-scratch or vllm?
vllm, with 96,302 stars; ai-engineering-from-scratch has 76,859.

The proof: vllm-project/vllm on GitHub

Which has more tests, ai-engineering-from-scratch or vllm?
vllm, with 2,419 test files; ai-engineering-from-scratch has 781.

The proof: vllm-project/vllm's code at commit 75f6761

Which was updated more recently, ai-engineering-from-scratch or vllm?
Both got their last push on November 4, 2026.

The proof: vllm-project/vllm's commits on GitHub

Which has more commits signed by AI, ai-engineering-from-scratch or vllm?
vllm: an AI signed 12.8% of its commits, with Claude Code, Codex, Gemini CLI, Cursor, GitHub Copilot, Devin, Mistral Vibe, CodeRabbit, Factory, and Qwen Code; in ai-engineering-from-scratch, 0.8%.

The proof: the commits each tool signed in vllm-project/vllm

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