vLLM uses PagedAttention to maximize GPU memory utilization for serving LLMs with high throughput.
How VLLM Open Source compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as VLLM Open Source does. All 5 offer an API, as VLLM Open Source does. VLLM Open Source offers a command-line tool. Of the 3 alternatives with platforms on record, 1 offers a command-line tool. VLLM Open Source was founded in 2020; the alternatives were founded between 2016 and 2024, 1 of them earlier. VLLM Open Source is based in Berkeley, United States; 2 of the 3 alternatives with a known headquarters are in the United States too, and the others in China.
Market position · AI Models
How VLLM Open Source compares in AI Models
VLLM Open Source has high opportunity and sits in the middle third of 455 live AI Models tools on FalcoScan. Across AI Models, the average opportunity score is 74.6 and the average saturation score 30.5. FalcoScan rates VLLM Open Source's own market position as open. 200 of the 455 operating AI Models tools have hot momentum, and FalcoScan has recorded 13 shutdowns in the category.
VLLM Open Source compared with its closest alternatives
Product
Opportunity
Saturation
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Free plan
API
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Momentum
VLLM Open SourceFounded 2020 · Berkeley, United States
Yes. FalcoScan lists VLLM Open Source as free to use.
What are the best alternatives to VLLM Open Source?
The closest alternatives to VLLM Open Source that are still running, matched on the AI capabilities, uses and audience they share, are Hugging Face Hub, DeepSeek R1, DeepSeek V3, Llama 3.3, and DeepSeek API.
Is VLLM Open Source still running?
Yes. As of 2 November 2026, FalcoScan lists VLLM Open Source as operating at vllm.ai.
Where is VLLM Open Source based?
VLLM Open Source is headquartered in Berkeley, United States.
Does VLLM Open Source have an API?
Yes. VLLM Open Source offers an API.
Who is VLLM Open Source for?
VLLM Open Source is built for developers.
How do I sign in to VLLM Open Source?
Sign in on VLLM Open Source's own website, vllm.ai. FalcoScan reviews VLLM Open Source but does not run its accounts, so logins, passwords and billing are handled by VLLM Open Source directly.