How AI answer engines name vLLM
Data through October 21, 2026
Across 1,236 answers ChatGPT, Claude, Gemini, Perplexity and Google's AI surfaces gave to buyer questions about AI Infrastructure between May 10, 2026 and October 21, 2026, vLLM was named in 146 (11.8%).
By engine
Answers each engine gave to buyer questions about AI Infrastructure, AI Security & Privacy and Enterprise AI, and how many of them named vLLM.
| Engine | Named | Answers | Rate |
|---|---|---|---|
| ChatGPT | 22 | 722 | 3.0% |
| Claude | 24 | 734 | 3.3% |
| Gemini | 85 | 734 | 11.6% |
| Perplexity | 26 | 705 | 3.7% |
| Google AI Mode | 9 | 125 | 7.2% |
| Google AI Overviews | 3 | 48 | 6.3% |
By question type
The same answers, split by the shape of the buyer question.
| Question type | Named | Answers | Rate |
|---|---|---|---|
| Best-of | 96 | 420 | 22.9% |
| Ranked list | 5 | 419 | 1.2% |
| Head-to-head | 12 | 427 | 2.8% |
| Is it worth it | 6 | 442 | 1.4% |
| How to choose | 39 | 441 | 8.8% |
| Problem first | 3 | 418 | 0.7% |
| News | 8 | 501 | 1.6% |
Week by week
vLLM was named in at least one answer in 15 of the 18 weeks on record; the latest was the week of October 19, 2026.
Each week's answers to buyer questions about AI Infrastructure, AI Security & Privacy and Enterprise AI, Monday to Sunday, newest first, and how many of them named vLLM. The questions asked can differ from one week to the next.
| Week of | Named | Answers | Rate |
|---|---|---|---|
| 1 | 89 | 1.1% | |
| 26 | 268 | 9.7% | |
| 27 | 359 | 7.5% | |
| 24 | 336 | 7.1% | |
| 24 | 336 | 7.1% | |
| 1 | 120 | 0.8% | |
| 12 | 344 | 3.5% | |
| 26 | 388 | 6.7% | |
| 20 | 327 | 6.1% | |
| 2 | 48 | 4.2% | |
| 0 | 40 | 0.0% | |
| 1 | 53 | 1.9% | |
| 1 | 52 | 1.9% | |
| 0 | 35 | 0.0% | |
| 1 | 111 | 0.9% | |
| 1 | 111 | 0.9% | |
| 2 | 48 | 4.2% | |
| 0 | 3 | 0.0% |
Named first
When an answer named vLLM alongside another brand in this record, it was named first in 39 of 91 (42.9%).
Named alongside
- Fireworks: named together in 32 answers
- Modal: named together in 29 answers
- Together AI: named together in 25 answers
- Lambda: named together in 22 answers
- Anyscale: named together in 11 answers
- Pinecone: named together in 11 answers
- GitHub: named together in 10 answers
- LangChain: named together in 10 answers
Sources the engines cited when they named vLLM
Domains cited in answers that named vLLM, by the number of those answers that cited them.
| Domain | Answers |
|---|---|
| medium.com | 34 |
| arxiv.org | 31 |
| spheron.network | 26 |
| youtube.com | 24 |
| runpod.io | 21 |
| huggingface.co | 20 |
| github.com | 17 |
| bentoml.com | 16 |
| reddit.com | 16 |
| deploybase.ai | 13 |
vLLM's own site (vllm.ai) was cited in 6 of 170 (3.5%).
Across every answer run in the Machine Relations Index, not only the answers that named vLLM, vllm.ai was cited in 6 of 29,566 (0.02%), by 3 of the 6 engines it observes. The Index is still collecting evidence on vllm.ai before it grades or ranks it.
Across every AI Infrastructure buyer question, not only the answers that named vLLM, the Machine Relations Index ranks which sources AI engines cite for AI Infrastructure questions.
All categories
| Category | Named | Answers | Rate |
|---|---|---|---|
| AI Infrastructure | 146 | 1,236 | 11.8% |
| AI Security & Privacy | 15 | 1,331 | 1.1% |
| Enterprise AI | 8 | 501 | 1.6% |
| Deep Tech & Hardware | 1 | 1,291 | 0.1% |
How this is measured
Names are matched case-sensitively from each brand's own homepage title, in answers stored by the Machine Relations Index. Only derived counts are published here; no answer text is.
A brand appears only once it has been named in at least 10 answers on 7 separate days.
A name match counts a mention. It does not count a recommendation, and it does not measure sentiment.
Categories are the Index's buyer-question categories.
Source: Machine Relations Index.
FAQ
Does ChatGPT recommend vLLM?
ChatGPT named vLLM in 22 of 722 answers (3.0%) to buyer questions about AI Infrastructure, AI Security & Privacy and Enterprise AI between May 10, 2026 and October 21, 2026. This record counts a name, not a recommendation: it does not judge whether the answer endorsed vLLM.
Which sources do AI engines cite when they mention vLLM?
The domains cited most often in answers that named vLLM were medium.com (34 answers), arxiv.org (31 answers) and spheron.network (26 answers).
Which AI engine names vLLM most often?
Gemini, at 11.6%: it named vLLM in 85 of 734 answers to buyer questions about AI Infrastructure, AI Security & Privacy and Enterprise AI.