Research & Analysis
AI-powered answer engine that gives cited, real-time answers instead of a list of links.
From $20 / mo
Visit WebsiteCommunication & Synthesis
Google's frontier AI assistant for chat, research, and work inside Gmail, Docs, and Drive.
From $20 / mo
Visit Website4-P Sovereignty Matrix
Lumen Trust Notes
Perplexity AI
Perplexity processes all queries on cloud infrastructure with no local option, keeping sovereignty low. Its transparent citation model and a genuinely useful free tier represent both an ethical commitment to honest information and broad access parity. Strongly recommended for research, fact-checking, and staying current — treat it as a research assistant, not a replacement for primary source verification.
Google Gemini
Gemini runs fully in Google's cloud with no local or self-hosted option for the consumer and Workspace products, so data sovereignty is Low. Google offers a genuinely usable free tier and broad accessibility, supporting High parity, while the product's clear productivity mission inside Workspace earns High purpose. Closed models and limited training-data transparency keep Provenance Low. Strong for Google-centric workflows; treat sensitive data under your organisation's Google Workspace and AI data-processing settings.
Pricing
Perplexity AI
From $20 / month
Google Gemini
From $20 / month
Disclaimer
Scores are based on publicly available information and Lumen's auditing criteria at the time of assessment. They may not reflect recent changes.
This comparison is not a legal or security audit. Read our full disclaimer.