ktransformers vs vllm
ktransformers and vllm share 14 technologies: FastAPI, Hugging Face, AIOHTTP, einops, OpenAI, sentencepiece, tiktoken, torch, transformers, safetensors, peft, triton, datasets, and psutil. Both are written in Python.
LinkedInWhat they share and what sets them apart
kvcache-ai
ktransformers
A Flexible Framework for Experiencing Heterogeneous LLM Inference/Fine-tune Optimizations
Python19.7kRead on November 5, 2026, at commit c987331What is ktransformers built with?Only in ktransformers
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
- axum
- gitdb
- pyzmq
- Tokio
starlette
- Ray
- tower
mkdocs-material
- indicatif
- NVIDIA
- quack-kernels
torchvision
torchaudio
- MCP
tokenizers
- markdown
markupsafe
- pymdown-extensions
pillow
- image
- jinja2
- Pydantic
msgspec
- jsonschema
- pydantic-core
- opentelemetry-api
- python-json-logger
tracing
prometheus-client
- OpenTelemetry
- opentelemetry-sdk
- prometheus-fastapi-instrumentator
Side by side
ktransformersvllm
SizeLines written by people and agents, without generated ones; code files, without tests.
ktransformers202,519 lines written376 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.
ktransformers2.2% of its commits signed by AIWith Claude Code, Gemini CLI, Cursor, and GitHub Copilot
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.
ktransformersLast push October 28, 2026939 commits19,660 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.
ktransformers178 test files6.9% 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, ktransformers or vllm?
vllm, with 2,375,117 lines written; ktransformers has 202,519.
The proof: vllm-project/vllm's code at commit 75f6761
Which has more GitHub stars, ktransformers or vllm?
vllm, with 96,302 stars; ktransformers has 19,660.
The proof: vllm-project/vllm on GitHub
Which has more tests, ktransformers or vllm?
vllm, with 2,419 test files; ktransformers has 178.
The proof: vllm-project/vllm's code at commit 75f6761
Which was updated more recently, ktransformers or vllm?
vllm: its last push was on November 4, 2026, and ktransformers's on October 28, 2026.
The proof: vllm-project/vllm's commits on GitHub
Which has more commits signed by AI, ktransformers 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 ktransformers, 2.2%.
The proof: the commits each tool signed in vllm-project/vllm
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