How AI answer engines name Promptfoo
Data through October 21, 2026
Across 1,331 answers ChatGPT, Claude, Gemini, Perplexity and Google's AI surfaces gave to buyer questions about AI Security & Privacy between May 10, 2026 and October 21, 2026, Promptfoo was named in 18 (1.4%).
By engine
Answers each engine gave to buyer questions about AI Security & Privacy and Enterprise AI, and how many of them named Promptfoo.
| Engine | Named | Answers | Rate |
|---|---|---|---|
| ChatGPT | 1 | 424 | 0.2% |
| Claude | 3 | 429 | 0.7% |
| Gemini | 13 | 429 | 3.0% |
| Perplexity | 3 | 400 | 0.8% |
| Google AI Mode | 2 | 113 | 1.8% |
| Google AI Overviews | 1 | 37 | 2.7% |
By question type
The same answers, split by the shape of the buyer question.
| Question type | Named | Answers | Rate |
|---|---|---|---|
| Best-of | 6 | 237 | 2.5% |
| Ranked list | 4 | 207 | 1.9% |
| Head-to-head | 0 | 216 | 0.0% |
| Is it worth it | 1 | 232 | 0.4% |
| How to choose | 7 | 231 | 3.0% |
| Problem first | 0 | 208 | 0.0% |
| News | 5 | 501 | 1.0% |
Week by week
Promptfoo was named in at least one answer in 11 of the 18 weeks on record; the latest was the week of October 19, 2026.
Each week's answers to buyer questions about AI Security & Privacy and Enterprise AI, Monday to Sunday, newest first, and how many of them named Promptfoo. The questions asked can differ from one week to the next.
| Week of | Named | Answers | Rate |
|---|---|---|---|
| 1 | 89 | 1.1% | |
| 3 | 89 | 3.4% | |
| 3 | 179 | 1.7% | |
| 2 | 168 | 1.2% | |
| 2 | 168 | 1.2% | |
| 2 | 120 | 1.7% | |
| 2 | 187 | 1.1% | |
| 3 | 192 | 1.6% | |
| 0 | 139 | 0.0% | |
| 0 | 48 | 0.0% | |
| 0 | 40 | 0.0% | |
| 0 | 53 | 0.0% | |
| 2 | 52 | 3.8% | |
| 0 | 35 | 0.0% | |
| 1 | 111 | 0.9% | |
| 2 | 111 | 1.8% | |
| 0 | 48 | 0.0% | |
| 0 | 3 | 0.0% |
Named first
When an answer named Promptfoo alongside another brand in this record, it was named first in 1 of 15 (6.7%).
Named alongside
- Cisco: named together in 6 answers
- Guardrails AI: named together in 5 answers
- Lakera: named together in 5 answers
- HiddenLayer: named together in 4 answers
- Databricks: named together in 3 answers
- Salesforce: named together in 3 answers
- Cyera: named together in 2 answers
- GitHub: named together in 2 answers
Sources the engines cited when they named Promptfoo
Domains cited in answers that named Promptfoo, by the number of those answers that cited them.
| Domain | Answers |
|---|---|
| github.com | 6 |
| appsecsanta.com | 4 |
| aidatainsider.com | 3 |
| arxiv.org | 3 |
| crn.com | 3 |
| crunchbase.com | 3 |
| amazon.com | 2 |
| bestllmscanners.com | 2 |
| budecosystem.com | 2 |
| calcalistech.com | 2 |
Promptfoo's own site (promptfoo.dev) was cited in 3 of 25 (12.0%).
Across every answer run in the Machine Relations Index, not only the answers that named Promptfoo, promptfoo.dev was cited in 16 of 29,566 (0.05%), by 5 of the 6 engines it observes. The Index is still collecting evidence on promptfoo.dev before it grades or ranks it.
Across every AI Security & Privacy buyer question, not only the answers that named Promptfoo, the Machine Relations Index ranks which sources AI engines cite for AI Security & Privacy questions.
All categories
| Category | Named | Answers | Rate |
|---|---|---|---|
| AI Security & Privacy | 18 | 1,331 | 1.4% |
| Enterprise AI | 5 | 501 | 1.0% |
| Cybersecurity | 2 | 1,811 | 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 Promptfoo?
ChatGPT named Promptfoo in 1 of 424 answers (0.2%) to buyer questions about 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 Promptfoo.
Which sources do AI engines cite when they mention Promptfoo?
The domains cited most often in answers that named Promptfoo were github.com (6 answers), appsecsanta.com (4 answers) and aidatainsider.com (3 answers).
Which AI engine names Promptfoo most often?
Gemini, at 3.0%: it named Promptfoo in 13 of 429 answers to buyer questions about AI Security & Privacy and Enterprise AI.