# RankSignal.ai > AI brand signal monitoring for brands and people RankSignal.ai monitors what leading AI models (ChatGPT, Claude, Gemini, Perplexity, Grok) say about brands, people, and organizations. It generates structured reports with a Signal Score (0-100) summarizing your AI brand signal. ## Key pages - Homepage: https://www.ranksignal.ai/ - How it works: https://www.ranksignal.ai/how-it-works - Pricing: https://www.ranksignal.ai/pricing - Blog: https://www.ranksignal.ai/blog - Glossary: https://www.ranksignal.ai/glossary ## Features - AI brand monitoring across 5 models (ChatGPT, Claude, Gemini, Perplexity, Grok) - Signal Score: 0-100 score measuring your AI brand signal across all models - Trust analysis with specific trust signals and red flags - Competitor comparison from AI perspective - Weekly automatic rescans for Pro subscribers - Score change tracking and email alerts ## Plans - Free: 3 full scans, dashboard, entity monitoring - Pro ($19/month): Unlimited scans, weekly rescans, full history, email digests ## Contact - Website: https://www.ranksignal.ai - Privacy policy: https://www.ranksignal.ai/privacy - Terms of service: https://www.ranksignal.ai/terms