Lexica

Based on the available evidence, Lexica is easiest to justify as an idea-search and prompt-reference tool first, and only secondarily as a full image generator. The heat proof is strong: multiple official X posts received high reposts and views, showing clear attention in the 2022-2023 AI art cycle. But proof of usefulness is thinner, relying mostly on official feature demos plus a small number of user impressions rather than deep long-form testing. So the safer judgment is that Lexica is a well-known image/prompt discovery product, not a fully validated top-tier commercial art platform.

Its practical value is straightforward: search AI-generated images by keyword, inspect the prompt and seed, copy or remix them, and use reverse image search to find similar Stable Diffusion-style outputs. The Zhihu answer and the Japanese user post point to the same benefit: if you cannot write prompts from scratch, Lexica gives you visible examples first, then lets you borrow style, wording, and structure to shorten trial-and-error time. It is not a raster editor like Photoshop, and not best understood as a closed community-first generator like Midjourney.