One project workflow
Bring drawings, specifications, general notes, revisions, scope, and bill-of-material decisions into a connected review process.

Project Builder Basic · Production Beta
An AI-assisted structural steel project workflow platform built around a clear operating rule: AI recommended, operator approved.
Bring drawings, specifications, general notes, revisions, scope, and bill-of-material decisions into a connected review process.
Find and consolidate information relevant to structural fabricators and erectors instead of flooding the operator with unrelated clauses.
The analyst can recommend and prioritize. It cannot approve scope or change project decisions without the operator.
Project Builder Basic Beta
Access is controlled by Datum23 invitation and authorization.
24-hour evaluation
Approved prospective customers may evaluate Project Builder for 24 cumulative session hours without a payment card.
Customer-local projects
Expiration does not affect project files stored in the customer-selected local folder.
Structural Steel Analyst
Future analyst capability is not included in Project Builder Basic.
Prospective customers may request a Charlie-approved evaluation providing 24 cumulative hours of actual Project Builder session time. Continued access requires an applicable paid entitlement.