Communication & Synthesis
Automatic meeting transcription and AI summaries for teams and professionals.
From $17 / 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
Otter.ai
Meeting audio and transcripts are processed and stored on Otter.ai cloud servers; no on-premise option exists for standard plans, which is a key consideration for legally sensitive discussions. The generous free tier and accessible pricing reflect genuine parity, and the core use case — reducing note-taking burden — is straightforward and valuable. Recommended for team meetings and interviews, but avoid using it for legally privileged or regulated conversations without reviewing Otter's data processing agreement.
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
Otter.ai
From $17 / 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.