head to head · open source

vllm vs popmon

vllm has 92,055 GitHub stars, 22,349 forks, 7,953 open issues and last shipped today. popmon has 511 stars, 35 forks, 12 open issues and last shipped 8 months ago. vllm leads on adoption by 17,915% (92,055 vs 511 stars). vllm is written in Python under Apache-2.0; popmon is written in Python under MIT. vllm has attracted 24% as many forks as stars, popmon 7%. vllm was the more recently maintained of the two, and both are self-hostable with no licence fee.

Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.

vllm ★ 92K popmon ★ 511 category AI & Machine Learning

← all 8884 open source comparisons

Side by side

	vllm	popmon
GitHub stars	★ 92K	★ 511
License	Apache-2.0	MIT
Written in	Python	Python
Last push	2026-09-18	2026-01-09
Forks	⑂ 22K	⑂ 35
Self-hosting	Yes	Yes
Data ownership	Your server	Your server

pick vllm if

You weight community size — 92K stars and counting
You want the Apache-2.0 license terms
Your stack matches Python
You value the larger contributor base for long-term maintenance

full vllm profile →

pick popmon if

You want the popmon feature set and don't need the biggest community
You prefer the MIT license terms
Your stack matches Python
You evaluated both and popmon fits your workflow better

full popmon profile →

About vllm

vLLM is a high throughput, memory efficient Python library for LLM inference and serving, built for ML engineers and platform teams who need to run open weight models on their own hardware at production scale.

read the full vllm overview →

About popmon

=========================== Population Shift Monitoring =========================== popmon is a package that allows one to check the stability of a dataset. popmon works with both pandas and spark datasets . popmon creates histograms of features binned in time slices, and compares the stability of the profiles and distributions of those histograms using statistical tests , both over time and with respect to a reference. It works with numerical, ordinal, categorical features, and the histograms can be higher dimensional, e.g. it can also track correlations between any two features. popmon can automatically flag an…

read the full popmon overview →

More in AI & Machine Learning

Related comparisons

More Machine Learning Infrastructure projects

Compare either of these against the rest of the Machine Learning Infrastructure field.

vllm vs Ollama vllm vs llama.cpp vllm vs GPT4All vllm vs llama_index vllm vs LocalAI vllm vs PageIndex vllm vs Langfuse vllm vs cognee vllm vs taipy vllm vs dagster vllm vs zvec vllm vs langchain4j

Frequently asked questions

Is vllm or popmon more popular?

vllm has 92,055 GitHub stars and popmon has 511. vllm has the larger community by that measure.

Are vllm and popmon free?

Both are open source. vllm is licensed under Apache-2.0 and popmon under MIT. Neither carries a licence fee.

What is the difference between vllm and popmon?

vllm is written in Python and popmon in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.

Which should I choose, vllm or popmon?

Choose vllm if you want the larger community (92,055 stars) or its Apache-2.0 licence terms. Choose popmon if its feature set, stack or MIT licence fits better. Both are self-hostable.