Compare a bounded browser/local workflow with a service that sends prompts or context to a cloud model.
This is a category-level operating-model comparison, not a fabricated competitor scorecard. There is no universal winner.
Focused workflow
Alternative operating model
Configure one non-medical companion or productivity workflow on the current web surface with the actual model/runtime/privacy boundary documented for the target environment.
Cloud AI assistant is the better starting point when that broader role is the main job you actually need, rather than the narrower workflow described here.
List exactly what user content is retained, transmitted or cleared. Keep the product positioned as a non-medical companion/productivity workflow unless it has the evidence and regulatory basis for more.
Capabilities vary by cloud ai assistant. Check whether it preserves the evidence, human review and handoff state your team needs instead of assuming the category guarantees it.
Test the privacy boundary in the deployed environment rather than assuming development behavior carries over.
Cloud AI assistant may legitimately cover responsibilities this focused workflow does not. Choose it when those responsibilities are required, not because a broader category sounds more complete.
Product teams exploring a browser-based local-first companion experience without medical, therapy, device-certification or app-store claims.
Choose cloud ai assistant when the narrow problem is not the buying trigger, or when your organisation needs the alternative category as a system of record or primary operating layer.
Choose Cura Local-First Web Companion Pilot when the narrow job, evidence model and boundary described above match the immediate operational problem.
Choose Cloud AI assistant when you need that category's broader responsibility as the main system or service. In some environments both layers are complementary rather than substitutes.
Before buying either option, verify the real data boundary, evidence retention, human approval model, integrations and exclusions against your own workflow.