OpenLens monitors prompts across ChatGPT, Perplexity and Google AI, reporting visibility scores, share of voice, average position and mentions at the topical level rather than per prompt. Its free plan includes 2 seats, 3 projects and 1,000 monthly credits, plus MCP and API calls for integrating with your own AI agents. GEO audit tools like AI Indexing, Site Readiness and Content Audit help explain why you are or aren't being mentioned.