Luca by ModelBest

[Assessment] Luca gained attention through its 2023 launch and media demos, but very limited independent testing is available. It should be seen as a free multimodal chat tool focused on Chinese scenarios, with its true capabilities yet to be widely validated. [Functionality] It handles Chinese-English dialogue, generates copy and code, answers knowledge and logic questions, and interprets images. Demos also showed internet-connected paper search and summarization. Access is free via its official website, with no reported paywall. [Fit] Suitable for individual users needing a free, Chinese-first multimodal assistant—such as content creators, learners, and light developers. Not for those requiring stable APIs, advanced reasoning, or up-to-date knowledge bases, nor for English-dominant tasks. It is not a general-purpose ChatGPT replacement but rather a Chinese-focused conversational product built on a proprietary 100B-parameter model. [Discussion quality] Existing evidence comes mainly from 2023 company announcements and tech media reports, with a few Zhihu upvotes. Only one independent review offers hands-on testing, providing an extremely limited sample.