# VectorGap

> VectorGap audits how AI models answer the questions a buyer asks, and reports which questions name a business and which name a competitor instead. Sold to marketing agencies, for the businesses they choose.

https://www.vectorgap.ai

## Pages
- [AI visibility tools compared: what each one measures (city, language, AIs, price)](https://www.vectorgap.ai/ai-visibility-tools-compared): AI visibility tools compared (read on 29 October 2026, sources on every line): BrightLocal from $31 per month per location, Google AI Overviews, AI Mode, ChatGPT. Otterly.AI from $29 per month, country level, any language. Semrush AI Visibility Toolkit $99 per month, 68,000+ locations. SE Ranking from $89 per month, five languages, city level coming soon. Veesie €29 per month, Dutch, French, English, Belgium, Netherlands, Luxembourg. Local Falcon from $24.99 per month, geo-grid. Ahrefs Brand Radar Custom Prompts from $50 per month, country level. Peec AI from $95 per month. Profound, Rankshift, Visiblie: price to verify or on request. VectorGap: one target = one city and one language, seven AIs, with and without web search, €250 Snapshot then €59 and €40 per client per month.
- [AI visibility in Montréal and Québec, in French and English](https://www.vectorgap.ai/multilingual-ai-visibility/montreal): Montréal measurement in French and Canadian English, with the measurement date, answer counts and audit IDs; Montréal is the published example, and any Canadian city can be measured.
- [Multilingual AI visibility](https://www.vectorgap.ai/multilingual-ai-visibility): The same business in the same city, compared across question languages in Montréal, Brussels, Luxembourg and Paris. Published web-search measurements, 24 to 30 September 2026, with actual answer counts, audit IDs and a CSV under CC BY 4.0.
- [Home](https://www.vectorgap.ai/): VectorGap runs 8 buyer questions per angle and per target against six AI models in Memory and seven with web search, and reports where a business is missing and who is named instead. Perplexity is measured with web search only.
- [The Brand Snapshot](https://www.vectorgap.ai/snapshot): The Brand Snapshot is a one-time $250 audit of how seven AI models answer when a buyer asks for what a business sells, in its city and its category, delivered within 48 hours. One Snapshot covers two targets: two languages, two personas or two places. The second target changes only one element: the language, the persona or the place. The 30-day proof loop: a second run of the same questions on the same models, 30 days after the report, with what moved. The 30-day proof loop covers both targets.
- [Sample report](https://www.vectorgap.ai/sample-report): A real Snapshot on an anonymized business, showing the buyer questions, the answers from each model, and the competitors named instead.
- [Pricing](https://www.vectorgap.ai/pricing): One entry product at $250 one-off (250 € for European customers). One Snapshot covers two targets: two languages, two personas or two places. The 30-day proof loop: a second run of the same questions on the same models, 30 days after the report, with what moved. Partner follow-up is monthly, per client and without commitment.
- [How we measure](https://www.vectorgap.ai/how-we-measure): The method: three families of questions, each asked once from what the model retained during training and once with the live web open, and what the resulting scores do and do not claim.
- [About](https://www.vectorgap.ai/about): VectorGap is based in Brussels, Belgium, founded in May 2026 and run by Johnny Lagneau.
- [Contact](https://www.vectorgap.ai/contact): How to reach VectorGap, at gap@vectorgap.ai.
- [Blog](https://www.vectorgap.ai/blog): Written explanations of generative engine optimization, how it differs from SEO, and how to check what an AI model says about a business.
- [Privacy](https://www.vectorgap.ai/legal/privacy): How VectorGap handles personal data.
- [Terms](https://www.vectorgap.ai/legal/terms): The terms covering use of VectorGap.
- [Cookies](https://www.vectorgap.ai/legal/cookies): Which cookies the site sets and why.

## What AI models recommend, by city
- [Same question, other language: Paris, Brussels, Luxembourg, Montréal](https://www.vectorgap.ai/ia-locale): Hub page, in French: the first business 7 AI models name for 5 trades in Paris, Brussels, Luxembourg and Montréal, per city and per language, with web search, measured on 24 September 2026 (Luxembourg accountants in German: 25 September 2026; Montréal: 30 September 2026).
- [Paris](https://www.vectorgap.ai/ia-locale/paris): Which lawyers, accountants, estate agents and insurance brokers 7 AI models name in Paris, asked in French and in English, from memory and with web search.
- [Brussels](https://www.vectorgap.ai/ia-locale/bruxelles): Which dentists, lawyers, accountants, estate agents and insurance brokers 7 AI models name in Brussels, asked in French, Dutch and English, from memory and with web search.
- [Luxembourg](https://www.vectorgap.ai/ia-locale/luxembourg): Which dentists, lawyers, accountants, estate agents and insurance brokers 7 AI models name in Luxembourg, asked in French, English and German, from memory and with web search. The German accountant question names Steuerberater (tax advisers) and was measured on 25 September 2026.
- [Montréal](https://www.vectorgap.ai/ia-locale/montreal): Which dentists, lawyers, accountants, estate agents and insurance brokers 7 AI models name in Montréal, asked in French and in English, from memory and with web search, measured on 30 September 2026.
- [Marketing agencies: one city, several languages](https://www.vectorgap.ai/ia-locale/agences): Measured agency citations in Brussels FR/NL, Luxembourg FR/EN/DE and Paris FR/EN, from the models’ own memory and with web search. Fourteen audits, with actual answer counts.

## What a Snapshot measures
- 8 buyer questions per angle and per target.
- 6 AI models per question in Memory and 7 with web search; Perplexity is Web-only.
- The same questions are measured without web search on six models and with web search on seven models. Perplexity is measured only with web search.
- 3 audit families: Presence (is the business named at all), Perception (what the models say about it), Preference (who they recommend when a buyer compares).
- 312 planned answer slots per target: 8 questions per angle x (6 Memory models + 7 Web models) x 3 angles. Actual usable answer counts are reported separately.
- Scores are reported per family and per mode. They are never merged into a single number.

## Partner follow-up
Partner follow-up: 59 € or $59 per month for the first client, 40 € or $40 for each additional client, excl. VAT. One client = one brand in one language and one city. 24 buyer questions a month to 7 AIs, with and without web search, in FR, EN, NL or DE. Reports in the partner's name. No commitment, no notice.

## Model panel
- ChatGPT
- Claude
- Gemini
- Grok
- Perplexity
- Mistral
- Muse Spark from Meta

## What VectorGap does not claim
- VectorGap does not measure leads, traffic, or how many people saw an AI answer. No model publishes that.
- VectorGap does not guarantee a position in an AI answer.
- The three audit families are not combined into one overall score on any public page.

## Company
- Legal name: VectorGap
- Based in: Brussels, Belgium
- Founded: May 2026
- Founder: Johnny Lagneau (https://www.linkedin.com/in/johnnylagneau/)
- Contact: gap@vectorgap.ai