head to head · open source
vllm vs mlop
vllm has 92,028 GitHub stars, 22,335 forks, 7,953 open issues and last shipped yesterday. mlop has 392 stars, 12 forks, 3 open issues and last shipped 7 months ago. vllm leads on adoption by 23,377% (92,028 vs 392 stars). vllm is written in Python under Apache-2.0; mlop is written in Python under Apache-2.0. vllm has attracted 24% as many forks as stars, mlop 3%. 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.
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Side by side
| vllm | mlop | |
|---|---|---|
| GitHub stars | ★ 92K | ★ 392 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-17 | 2026-03-05 |
| Forks | ⑂ 22K | ⑂ 12 |
| 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
pick mlop if
- You want the mlop feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and mlop fits your workflow better
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.
About mlop
mlop is an Apache 2.0 licensed Python experiment tracking and lifecycle management framework for machine learning teams, offered both as a hosted service at app.mlop.ai and as a self hosted server run with docker compose.
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Frequently asked questions
Is vllm or mlop more popular?
vllm has 92,028 GitHub stars and mlop has 392. vllm has the larger community by that measure.
Are vllm and mlop free?
Both are open source. vllm is licensed under Apache-2.0 and mlop under Apache-2.0. Neither carries a licence fee.
What is the difference between vllm and mlop?
vllm is written in Python and mlop 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 mlop?
Choose vllm if you want the larger community (92,028 stars) or its Apache-2.0 licence terms. Choose mlop if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.