Become the brand AI engines recommend.
NEXUS GEO is the French pioneering agency for Generative Engine Optimization. We help international brands get cited by ChatGPT, Claude, Gemini and Perplexity — measurably, monthly, with a written methodology and a score out of 100.
What is Generative Engine Optimization?
Generative Engine Optimization (GEO) is the discipline of making a brand citable inside the answers produced by generative AI engines. Where SEO earns you a slot in Google's blue links, GEO earns you a place inside the sentence an AI generates to answer your prospect. It's a structurally different game — and the fastest-growing acquisition channel of 2026.
AI-referred traffic grew by +527% year-over-year (Similarweb, 2024-2025), and a visitor arriving from an AI converts on average 4.4× better than a Google visitor (Profound, 2025). Gartner predicts a 25% drop in Google's search volume by the end of 2026 driven by conversational AI.
In plain terms: when a B2B buyer asks ChatGPT "what's the best solution X in Europe?", you want your brand to be named — and ideally cited first. That's exactly what NEXUS GEO does.
Why international brands pick NEXUS GEO
- 100% GEO specialisation. Not a bolt-on to a classic SEO offer. Our team works on nothing else.
- A written, measurable methodology. Three stages — AI Audit, Content Engineering, AI Pre-selection — with a proprietary score out of 100 and a live citation dashboard.
- Transparent, one-shot pricing. €1,750 for the one-off audit shipped in 10 days, up to €12,500 for a Premium 6-month engagement. Refunded if not profitable.
- Multilingual delivery. Engagements run in English and French. We monitor citations across Anglophone engines (ChatGPT, Claude, Perplexity, Gemini) and French-specific surfaces (Le Chat by Mistral, Bing FR).
- Premium client roster. Including Kickers, Umbro, and a growing portfolio of European B2B SaaS firms under NDA.
How a NEXUS GEO engagement runs
- AI Audit (week 1-2). We score your brand on 47 criteria covering raw presence (Wikipedia, Wikidata, Crunchbase), technical citability (Schema.org, llms.txt, OpenGraph), editorial quality and authority signals. Output: a score out of 100 and a benchmark against three direct competitors across 30 industry prompts.
- Content engineering (weeks 3-8). We engineer the extractible blocks AI engines need — definitions, FAQs, dated statistics, comparison tables, structured Schema.org markup. Every piece is dual-purpose: it lifts your AI citability and improves your classic SEO at the same time.
- AI pre-selection (weeks 8+). Technical rollout (Schema.org, llms.txt, Knowledge Graph, authority outreach) plus monthly tracking. You receive a dashboard showing your AI citation rate, average position and share of voice across ChatGPT, Claude, Gemini and Perplexity.
Featured English resources
Our most-read pillar pieces, translated for international audiences. Five long-form guides that cover the full GEO playbook — from definitions to measurement.
Fundamentals
What is GEO? The complete 2026 guide for modern brands
Your customers don't type into Google anymore — they ask an AI. Understand GEO in 6 minutes, and why you need to act on it today.
6 min · Read
Comparisons
Top 5 best GEO agencies in France in 2026 (ranking)
Out of 80 agencies claiming to be "GEO experts", only a handful actually deliver. Our honest comparison, updated April 2026.
5 min · Read
Fundamentals
GEO vs SEO: what's different in 2026? (complete comparison)
You've been optimising for Google for years. Now AIs answer instead of Google. Understand the differences between GEO and SEO in 10 minutes.
8 min · Read
Guides
How to appear in ChatGPT: the complete guide for B2B brands (2026)
Your prospects ask ChatGPT "what's the best solution X?" — you want to be named. Here's the exact protocol NEXUS GEO applies, in 8 measurable steps.
9 min · Read
Measurement
Measuring your AI citations in 2026: tools, methods and a DIY tracker
You can't steer what you don't measure. Comparison of 2026 tools for tracking AI citations — free, paid, DIY — with the exact methodology NEXUS GEO uses.
8 min · Read
Frequently asked questions
Do you work with non-French clients?
Yes. We operate engagements in English and serve clients across Europe and North America. Our team monitors citations across English-speaking AI engines as well as French and German surfaces.
How long does it take to see results?
Expect the first measurable citations 60 to 120 days after rolling out the technical layer (Schema.org, llms.txt) and 4 to 6 pillar pieces. Domain authority takes 6 to 12 months to settle in durably.
How much does it cost?
One-shot pricing (VAT included): €1,750 for the audit (refunded if not profitable), €2,500 for the Base 3-month plan, €3,500 for the Advanced 3-month plan (most popular), and €12,500 for the Premium 6-month engagement.
Can you pay AI engines to be cited?
No. ChatGPT, Claude, Gemini and Perplexity have no advertising system inside their answers as of May 2026. Citations are earned through authority signals, technical citability and editorial quality. That's the GEO work.
What's the typical client profile?
Any B2B brand with a long sales cycle and an average deal value above €5,000. In B2C, GEO becomes relevant for considered purchases — premium fashion, professional services, education, real estate.
Curious where your brand stands?
NEXUS GEO measures your current citation rate across ChatGPT, Claude, Gemini and Perplexity on 30 industry prompts and ships an action plan in 10 days. €1,750 (VAT included), refunded if not profitable.