AuctionApp was initially conceived and developed with the assistance of ChatGPT. The early architecture, routes, and core cataloging logic were built in collaboration with OpenAI's GPT models.
The app was brought to its current state of completion with Claude. Features including multi-user isolation, session authentication, the assign page, WordPress publishing, self-registration, and numerous bug fixes were developed in collaboration with Claude.
AI-powered catalog description generation is provided by Google's Gemini 2.5 Flash model, which performs OCR and generates professional auction catalog entries from lot photographs.
The OCR Review feature is powered by Perplexity's Sonar API, whose live web search verifies and corrects proper nouns — authors, printers, place names — in catalog text drawn from antiquarian material.
Conceived, directed, and deployed by Denis Gouey — professional antiquarian bookseller and auction cataloger. Denis Gouey Bookbinding Studio, established 1981, New York City NY.
