GoHighLevel (GHL) is the leading 2026 AI-powered all-in-one business operating system for agencies, marketers, and businesses—combining CRM, marketing automation, sales pipelines, funnels/websites, SMS/email/voice AI, conversation AI, reviews AI, and more. Capture leads with forms/landing pages, nurture via multi-channel AI automations, close with payments/pipelines, and scale with unlimited sub-accounts, white-label desktop/mobile apps (higher plans), and API access. 14-day free trial, pay-as-you-go usage for comms/AI—trusted by agencies to consolidate tools, save costs, and automate 24/7 client work.