The Bottom Line
- Price
- From $2.50/mo (free plan available). Compare plans
Key facts
- Generates architecture diagrams from any codebase and uses them as specifications for AI coding agents.
- Runs fully offline with local models or your own API keys; your code never leaves your machine.
- Includes a free CLI and a paid desktop app with design, diagram, audit, and dashboard surfaces.
Pros
- Fully offline operation with local models ensures complete code privacy.
- Architecture-first approach helps developers understand and document system design before coding.
- Free CLI with no account needed, and a paid desktop app with no usage metering.
Cons
- Desktop app requires a paid subscription after a trial period.
- Relies on users providing their own API keys or local models for advanced features.
What is Lucid Train?
Ratings Across the Web
Lucid Train holds an aggregate rating of 4.5 out of 5 from 8,828 reviews across G2, last checked August 24, 2026.
Ratings aggregated from independent review platforms. Learn more
Key Features
- Architecture diagram generation from any codebase, handed to coding agents as a specification.
- Multi-project workspaces with per-repo agent sidecars and history.
- Reviewable diffs with risk-tiered commands that refuse catastrophic edits.
- Command palette for tabs, projects, themes, and editor integration.
- Support for MCP servers and SKILL.md packs from skills.sh.
- Voice push-to-talk with on-device transcription and vision model image attachment.
- Design mode for generating self-contained HTML from descriptions.
- Dependency and MCP auditing across nine ecosystems (osv-scanner, npm, cargo, pip, etc.).
Pricing Plans
Free TrialPricing checked Oct 5, 2026
| Plan | Price | Details |
|---|---|---|
| CLI (Free) | Free |
|
| Desktop (Lucid Train) | $2.50 / mo or $30/year |
+2 more Show less
|
Is Lucid Train worth the price?
At $2.50/month or $30/year, Lucid Train is extremely affordable for a native desktop app that generates architecture diagrams from code.
The free CLI tier is generous and fully functional for developers who don't need the GUI. This pricing is best for individual developers and small teams who want to reduce manual diagramming without committing to expensive enterprise tools.
Hidden Costs & Gotchas
No overage fees but no cloud model credits included
How Lucid Train's pricing compares
At $2.50/mo, billing unit not specified, Lucid Train is the most affordable of its 3 comparable direct competitors.
Entry paid plan, monthly. Pricing checked Oct 5, 2026.
Reviews
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Lucid Train FAQ
How does Lucid Train generate architecture diagrams from code?
Can I use Lucid Train with multiple repositories at once?
What types of audits does Lucid Train perform?
Does Lucid Train integrate with Grafana?
Can I use Lucid Train with voice commands?
What is the design mode in Lucid Train?
How does Lucid Train handle code edits and approvals?
Can I use Lucid Train with existing AI subscriptions like Claude Pro or ChatGPT Plus?
Source: lucidtrain.com