Data Sovereignty
Desktop app to download and run open-weight LLMs locally with a chat UI and local server API.
Free
Visit WebsiteSoftware Intelligence
AI-native code editor with agentic Cascade workflows, unlimited Tab completions, and frontier model access.
From $20 / mo
Visit Website4-P Sovereignty Matrix
Lumen Trust Notes
LM Studio
Inference stays on-device when used offline/local, earning High privacy and strong data sovereignty. The app is free to download, supporting High parity. Purpose is High—it lowers the barrier to private, local AI. Provenance is High when you choose transparent open-weight models (you still choose which weights to trust). Requires capable hardware; ideal when cloud LLM policies are too risky.
Windsurf
Agent and chat traffic generally goes to Windsurf/cloud model providers unless enterprise deployment options say otherwise—Privacy Low for typical Pro use. Free tier plus $20 Pro supports Medium parity. Purpose is High for accelerating real software work. Provenance Low due to closed product and third-party frontier models. Review privacy/zero-retention options before connecting proprietary repos.
Pricing
LM Studio
Free
Windsurf
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.