Productivity Engines
AI writing and summarisation built directly into Notion's all-in-one workspace.
From $10 / mo
Visit WebsiteResearch & Analysis
AI-powered answer engine that gives cited, real-time answers instead of a list of links.
From $20 / mo
Visit Website4-P Sovereignty Matrix
Lumen Trust Notes
Notion AI
Notion AI processes data on Notion's cloud infrastructure via third-party model providers (OpenAI, Anthropic); there is no self-hosted or local option. Its add-on pricing model is reasonable and its deep integration with existing workflows provides genuine productivity value without dark patterns. Ideal for teams already on Notion, but review Notion's sub-processor data agreements before storing sensitive client information.
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.
Pricing
Notion AI
From $10 / month
Perplexity AI
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.