This report presents the findings of 2A Agency's independent semantic audit of Kretz Family Real Estate, conducted across 4 large language models in March 2026. The audit evaluates factual accuracy on founders, Netflix series, geographic footprint, positioning, family roles, franchise status and commercial impact of the series.
Kretz Family Real Estate achieves an overall score of 76/100. Strong recognition across all LLMs on founders (2007, Olivier & Sandrine Kretz), positioning and Netflix impact. Three targeted drifts: season count (ChatGPT: 4, Grok: 5 — correct: 6), franchise model missing in 2 models, and unconfirmed geographic locations in ChatGPT.
| Question | Perplexity Pro | Gemini Pro | ChatGPT Free | Grok | Verdict |
|---|---|---|---|---|---|
| Founders & creation | ✓ Olivier & Sandrine, 2007 | ✓ 2007, notes Olivier ex-telecoms | ✓ 2007, ex-P&G Pernod Ricard | ✓ 2007, correct | Exact |
| Netflix series & seasons | ✓ 6 seasons, S6 Netflix Feb 2026 | ✓ 6 seasons, correct dates | ✗ 4 seasons cited (incorrect) | ~ 5 seasons cited (incorrect) | Critical |
| Geographic footprint | ✓ France, Spain, Monaco, Belgium, Mauritius, NY | ✓ Confirmed markets + 130 agents | ~ Lists Athens, Ibiza, Lisbon (unconfirmed offices) | ✓ Core markets confirmed | Partial |
| Positioning & property types | ✓ Ultra-luxury, off-market, family DNA | ✓ Lifestyle, Kretz Club noted | ✓ Independent luxury, storytelling | ✓ Luxury, art de vivre | Exact |
| Family roles | ✓ All roles confirmed | ✓ Notes external CEO Bruneau | ✓ All 4 sons + Eve von Romberg | ✓ All roles, Majo noted | Exact |
| Franchise vs independent | ✓ Hybrid: independent + franchise 2026 | ✓ Franchise fee 50k€ + 11% revenue | ✗ Describes as "fully independent" | ✗ "Not a franchise" — franchise launch missing | Critical |
| Netflix commercial impact | ✓ +80% growth, 500M€ sold, 50% US clients | ✓ Detailed: 250 transactions, 20% via Instagram | ✓ Major accelerator confirmed | ✓ 500M€, "two nuclear reactors" quote | Exact |
| Avg price & recent listings (Q8) | ✓ €1.9M avg ticket. €33.85M Faubourg Saint-Honoré example — well sourced | ~ €1.9M avg. Cites two unverified listings: 900m² at €59M and 600m² at €24.9M | ✗ Cites 32m² apartment at €710k as example — non-representative of Kretz positioning | ✓ €1.9M avg. €33.85M record cited. Correct price dispersion noted | Partial |
| Most expensive sale & Netflix (Q9) | ✓ €33.85M Faubourg SH. Correctly notes: NOT a Netflix episode — TF1 press coverage | ~ €33.85M correct. Claims filmed in Season 4 & Season 5 — unverified | ~ €33.85M correct. "Not publicly documented as Netflix episode" — hedged but incomplete | ✓ €33.85M correct. Notes Château d'Armainvilliers at €180M as largest listing (not sold) | Partial |
ChatGPT Free cites 4 seasons of "L'Agence". Grok cites 5. The correct count as of March 2026 is 6 seasons — Season 6 premiered on TMC in late 2025 and was released on Netflix France on 5 February 2026. Perplexity Pro and Gemini Pro correctly cite 6 seasons.
Business impact: The Netflix series is the primary commercial driver of Kretz Family Real Estate — described by Valentin Kretz as "two nuclear reactors" (TMC + Netflix). An AI agent citing an outdated season count signals stale data to users and reduces brand authority. As Kretz expands via franchise and recruits clients globally through the series, accurate representation of its current media presence is material.
ChatGPT states Kretz is "not a franchise". Grok says it is "fully independent". Both miss a material structural change: Kretz officially launched an international franchise model in 2025-2026. First franchises: Belgium (Brussels, Place Brugmann) and Mauritius (Pereybère). Franchise fee: €50,000 per city + 11% revenue share.
Business impact: The franchise model is now a strategic growth pillar announced publicly by Valentin Kretz in a Variety interview. Entrepreneurs seeking to invest in a Kretz franchise who rely on AI agents for due diligence will receive incorrect information about the agency's structure.
ChatGPT lists Athens, Ibiza, Lisbon and London as Kretz operating cities. These locations appear in the Netflix series "Nouvelles Destinations" spin-off as filming locations — not confirmed permanent office markets. Core confirmed markets are France, Spain, Monaco, Belgium, Mauritius, New York, and Saint-Barth.
When asked for an example of a Kretz listing in Paris, ChatGPT Free responds with a 32m² apartment in Montorgueil listed at €710,000. This property — while potentially on the Kretz site — is entirely non-representative of the agency's positioning. Kretz Family Real Estate specialises in ultra-luxury properties averaging €1.9M, with flagship transactions in the €5M–€34M range.
Business impact: An international buyer using ChatGPT to research Kretz before making contact arrives with an entirely wrong expectation of the agency's inventory and price point. This is a brand positioning failure — Kretz risks being perceived as a mid-market agency rather than the ultra-luxury operator it is.
Gemini Pro states with confidence that the record €33.85M Faubourg Saint-Honoré sale "was a major storyline in the show (featured in Season 4 and referenced in Season 5)". Perplexity Pro directly contradicts this, stating the sale "was not staged as a Netflix episode" but was covered by TF1's Sept à Huit news programme.
This is a direct factual contradiction between two LLMs on a verifiable fact — which season (if any) featured this transaction. The correct answer is critical for Kretz: misattributing their record sale to the wrong season undermines the credibility of both the agency and the show.
Business impact: Journalists, investors, and franchise candidates researching Kretz via AI agents will receive conflicting information about the agency's flagship transaction and its media coverage. This creates credibility risk precisely around the asset Kretz most wants to promote.
Gemini Pro presents two listings as current Kretz inventory in 2026: "900m² apartment in the 8th at €59,000,000" and "600m² private mansion in the 16th at €24,900,000". No source is provided. These figures cannot be verified from public Kretz listings and may be hallucinated or based on outdated indexed data.
Business impact: A buyer researching Kretz and acting on a Gemini-cited listing will either find it does not exist, has been sold, or was never listed at that price. This is the core risk of the agentic commerce era — AI agents recommending sold or fictitious properties.
All three drifts are actionable and fixable within 4–8 weeks with targeted structured data deployment.
Deploy JSON-LD with explicit reference to Season 6 (Netflix France, 5 February 2026) and numberOfEpisodes on kretzrealestate.com and the agency's official social profiles. This will correct ChatGPT's 4-season count and Grok's 5-season count within 4–8 weeks as they crawl updated structured data.
Publish structured data documenting the hybrid model: independent agency (France, Spain, Monaco) + international franchise (Belgium, Mauritius, 2025-2026). Include franchise fee structure (€50,000 + 11% revenue) and the Kretz Academy training programme. This corrects the "fully independent" misconception in ChatGPT and Grok.
Deploy a certified 2A Registry node documenting: average ticket (€1.9M), typical range (€1M–€10M core luxury, €10M+ ultra-luxury), record confirmed sale (€33.85M, Faubourg Saint-Honoré, early 2025, buyer: US crypto entrepreneur). Explicitly note: Château d'Armainvilliers listed at €180M — not yet sold. This prevents Gemini from confusing listing prices with transaction prices.
Deploy explicit list of confirmed permanent office locations (vs filming locations). Wikidata entry (currently limited) should be updated with confirmed offices: Boulogne-Billancourt (HQ), Paris 7e (rue du Bac, 2026), Monaco (1 Av. Henry Dunant), Spain (Barcelona, Madrid, Marbella), Belgium (Brussels franchise), Mauritius (Pereybère franchise).
As Kretz expands via franchise (new countries each year), launches new seasons, and grows the Kretz Club and Kretz Academy, new drift vectors will emerge. Monthly monitoring recommended given the pace of structural and media change — quarterly is insufficient for a brand evolving this rapidly.