PromptSignal

PromptSignal is an AI visibility monitoring platform that shows how leading AI models mention, rank and describe a brand. As more buyers research products by asking ChatGPT and similar assistants instead of searching Google, it gives brand teams a way to measure how they appear in those answers and what to change. The platform queries models including ChatGPT, Claude, Perplexity and Gemini daily with a chosen set of prompts. Curated prompt suggestions are tailored to the business. Reported metrics include brand visibility, which is how often the brand appears in responses, competitor tracking against direct rivals, a sentiment score for the tone of each mention, ranking position within AI generated lists and comparisons, and prompt performance showing which prompts the brand wins or loses. It also provides personalized technical recommendations, and briefs and drafts written for answer engines. The pricing page lists support for models from OpenAI, Gemini, Perplexity, Anthropic, xAI, DeepSeek, Mistral and Llama. The site references SOC 2 and GDPR compliance. It is designed for brand, product and growth teams who treat visibility in AI generated answers as a channel alongside traditional SEO and public relations. The vendor describes itself as onboarding early users. Pricing has two tiers. Starter is $99 per month with unlimited users, 50 tracked prompts, daily updates and email support. Enterprise is priced on demand and adds unlimited prompts, hourly updates, single sign on and on premise deployment.