Spangle AI

Spangle AI develops an agentic AI platform for e-commerce revenue optimization that turns shopper context into revenue by delivering adaptive, self-optimizing shopping experiences from discovery through conversion. The platform is powered by ProductGPT, a proprietary large product model that decodes context, consumer interactions, and merchant data to enrich catalogs, understand shopper intent, and learn product relationships using imagery, reviews, engagement patterns, and market signals. Spangle's Seller Agent operates in real-time across discovery and conversion, applying merchandising rules and brand guardrails while orchestrating experiences using reasoning rather than rigid rules. A continuous learning loop feeds every decision back into ProductGPT, deepening the data moat with every session. The platform delivers self-optimizing landing experiences that match ad clicks to personalized pages, intelligent "For You" recommendations, AI-native search and discovery, and closed-loop GEO optimization for ChatGPT, Perplexity, and AI shopping platforms. Proven results include 50% revenue per visit increase, 2x return on ad spend, 57% decrease in cost per visit, and 15% AOV increase. Customers include REVOLVE, Steve Madden, Alexander Wang, and WHP Global. Founded in 2024 and headquartered in Bellevue, United States, Spangle AI has raised approximately $21 million at the Series A stage from investors including Madrona, Streamlined Ventures, NewRoad Capital Partners, and DNX Ventures.