ArchGPT vs diagram.ch

ArchGPT

Figure	ArchGPT	diagram.ch
Price from	₹499/mo	Free
Free plan	Yes	Yes
Free trial	—	—
Open source	—	—
Web	Yes	Yes
Plans published	3	1
Spec score · AI Diagram Generators	8.2 (#10)	7.3 (#28)
Diagram types	It supports UML, ER, flowchart, C4, sequence, use case, activity, object, state, deployment, component, and system architecture diagrams.	The MVP supports flowcharts, process diagrams, mind maps, sequence diagrams, and system or software architecture diagrams.
Editing	Generated diagrams can be edited in the built-in Draw.io editor.	Users can edit the original description and regenerate, or edit copied Mermaid code in a compatible Mermaid editor.

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