Cloudflare Workers and D1. NVIDIA Nemotron on Nebius powers schema suggestions, extraction, and document chat for signed-in users. Sample invoices use offline processing without model calls. AI input includes document text and is sent to Nebius. Calculations use the extracted table, not model arithmetic. Upload text-based PDFs, TXT, or Markdown. Maximum 30,000 characters per file, 30 PDF pages, 20 files per dataset. Data expires after seven days. Clerk sign-in protects personal workspaces. Signed-out visitors can only use sample invoices. Datasets expire after seven days, including account datasets. Chat history is not saved. AI requests use Nebius credits. The app limits requests to 30 per day globally and 10 per account, with no automatic retries. Failed attempts count. Model responses are capped at 4,096 tokens. These are application limits, not an account-wide billing cap.