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Atlantic City Casino-Hotels Allegedly Used Cendyn's Rainmaker AI to Coordinate and Inflate Room Rates

Occurred
Jun 28, 2018
Published
Jul 29, 2026
Source
AI Incident Database

Summary

Atlantic City casino-hotels were alleged to have used Cendyn's Rainmaker AI-powered pricing platform to coordinate room rates using competitors' non-public pricing and occupancy data. Plaintiffs alleged that the hotels accepted Rainmaker's recommendations about 90% of the time, resulting in anti-competitively high room prices for guests.

Developers

  • The Rainmaker Group
  • Cendyn Group
  • AI-powered dynamic pricing software developers

Deployers

  • Tropicana Casino and Resort Atlantic City
  • MGM Resorts International
  • Hotels
  • Harrah's Resort Atlantic City
  • Hard Rock International
  • Hard Rock Hotel & Casino Atlantic City
  • Companies
  • Casinos
  • Casino-hotels
  • Caesars Entertainment
  • Caesars Atlantic City Hotel & Casino
  • Borgata Hotel Casino & Spa
  • Atlantic City casino-hotels using Rainmaker pricing software

Harmed parties

  • Hotel customers
  • Customers
  • Casino-hotel customers
  • Atlantic City casino-hotel guests allegedly charged anti-competitively high room rates

Classification

Category confidence: 85%
Severity confidence: 90%

Rationale: AI pricing platform used to coordinate rates, raising antitrust concerns without physical harm or major financial loss.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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