Lucid Train vs Mowgli

Lucid Train is a desktop coding harness that draws architecture diagrams from a codebase and passes the diagram to a coding agent as a specification. The agent emits a semantic graph, and the ELK layout engine positions diagram elements and routes edges. Diagrams are Excalidraw scenes that can export to SVG and PNG or become Markdown specifications; Mermaid support and diagram import are also listed. Proposed edits appear as diffs, and commands use risk tiers, with catastrophic commands refused. Model options include local Ollama, OpenRouter, other OpenAI-compatible endpoints, and hosted cloud models. Repository files are processed locally; prompts and code go to the selected provider, or nowhere when using local models. The maker says it collects no telemetry, analytics, prompts, code, or usage data from local or bring-your-own-key sessions. API keys are stored locally or in the OS keychain. Connectors include GitHub, Vercel, Railway, and Grafana, plus arbitrary stdio MCP servers; remote HTTP and SSE servers cannot connect directly. The free CLI is open source. The native app costs $2.50 per month, billed $30 a year, and includes a 7-day free trial.

Mowgli is an AI design canvas for mobile, web, and desktop apps, aimed at builders shaping a product before implementation. It can generate high-fidelity screens, flows, and states, and turn an idea into a product requirements document with screens, features, and user flows. Moodboards offer 16 or more visual styles, with color palettes and typography moods. Designs can become interactive prototypes with navigation and transitions. Users can import Figma designs for AI editing and export to Figma, React components, or an AI-ready package. MCP connections let Claude, Codex, Cursor, and other compatible apps move designs and product screens between Mowgli and a codebase. A free plan includes 300 credits, Figma import, coding-agent connection, and full version history. Annual-billing plans are listed at $12.00 per month for Starter, $20.00 per month for Pro, and $49.00 per month for Team. Team adds real-time canvas collaboration and person-attributed version history; unused credits expire under subscription or credit-pack billing rules.