Callout

The pricing page states that new accounts receive 50 free credits with no credit card required. That is enough for several sheets at Standard depth or more at Quick depth, depending on how you run reviews. Confirm the current signup offer on https://www.callout.app/pricing before you rely on it for budgeting.

Callout accepts PDF construction drawings only. The FAQ on the vendor site lists a 100 MB maximum upload size and up to 50 sheets per review session. Multi-file uploads and multi-sheet sets are supported as long as you stay within those limits.

No. Callout is marketed as an AI-assisted first pass. The vendor states that all findings must be checked by a licensed professional engineer before use in construction documents. The PE still owns the stamp, the liability, and the judgment calls the tool cannot make.

Credits are charged per sheet based on review depth: 2 credits for Quick, 3 for Standard, and 4 for Thorough, as shown on the pricing page. List packs include a 100-credit Starter at $8 and a 1,500-credit Studio at $99 at the time of this listing; divide credits by the per-sheet rate to estimate sheets per pack. Prices change, so verify on the vendor pricing page before purchase.

The security page states that PDF drawing files are not stored on Callout servers after processing and that analysis runs in memory without writing drawings to disk. Anthropic's commercial API is described as zero-retention for that processing path. Review results and account metadata are stored; you can manage or delete history from the product as described in the app.

Marketing materials cite 33+ model codes and national standards, including examples such as IBC, IMC, IPC, IECC, NEC, ASCE 7, ACI 318, AISC 360, and selected NFPA documents, with edition notes on the public site. You also select disciplines at review time. Local adoption still varies, so the vendor recommends uploading jurisdiction amendment PDFs when local rules differ from the base model code text.

Callout targets repetitive checklist-style checks and cross-code passes at machine speed so a PE can focus on judgment-heavy items. The site compares manual PE review cost bands to credit-based first-pass economics, but it does not remove the need for a qualified engineer on the project. Use it as a triage layer, not a substitute for code interpretation where the AHJ or site context matters.