Callout - 2026 Pricing, Features, Reviews & Alternatives

Callout is an artificial intelligence powered construction drawing review tool designed to identify code violations and compliance issues across architecture engineering and construction disciplines. The platform enables licensed professional engineers architects and design firms to conduct automated first pass reviews of PDF construction drawing sets against more than forty three building codes and national standards. The solution provides structured analysis across seven disciplines including mechanical structural architectural electrical plumbing energy and fire and life safety. The platform produces annotated findings that require verification by licensed professionals before inclusion in construction documentation.

The system accepts PDF drawing sets up to twenty megabytes and up to fifty sheets per review session and supports multi sheet single sheet and multi file uploads. Users select applicable codes from a library of model codes such as the International Mechanical Code two thousand twenty four and two thousand twenty one the International Building Code two thousand twenty four and two thousand twenty one the International Plumbing Code two thousand twenty four and two thousand twenty one the International Energy Conservation Code two thousand twenty four and two thousand twenty one ASHRAE standards NFPA thirteen two thousand twenty two NFPA seventy two two thousand twenty two NFPA one hundred one ASCE seven ACI three hundred eighteen AISC three sixty and the National Electrical Code. Each review generates findings with severity ratings exact code citations confidence levels and suggested resolutions. An accept reject workflow allows the approval dismissal or editing of individual findings and the machine learning engine calibrates to match professional judgement over time.

The Firm Standards Library enables the codification of firm specific requirements in plain English such as minimum equipment access clearances duct leakage testing protocols control sequences and commissioning requirements. Jurisdiction amendment PDFs can be uploaded to account for city county or state level modifications and the artificial intelligence flags instances where amendments override or modify base model codes. Personal standards remain associated with individual user accounts and organization level standards synchronize across all team members.

A searchable archive stores past reviews by project sheet discipline or severity level and configurable depth settings adjust review thoroughness. Simultaneous multi trade set analysis against all applicable codes occurs in a single processing pass. Drawing files are uploaded temporarily for processing and deleted immediately after review. The application operates through cloud infrastructure and is accessible via web browser without software installation. The system interfaces with an external API that maintains a zero retention policy and does not use customer drawing data for model training. The solution functions as a standalone review tool within established engineering workflows.