4Utech (世优科技; legal entity 世优（北京）科技股份有限公司) is a China-based company founded in 2015 that provides full-stack digital human solutions, offering customized virtual digital humans for sectors including tourism, broadcasting, finance, and education, with products and services spanning real-time AI-driven avatars, interactive digital human systems, and virtual studio production; it promotes proprietary offerings including “BOTA/波塔” for interactive AI digital humans and a “Virtual Factory/数字人工厂” workflow for rapid avatar production, supports 2D, 2.5D, and 3D digital humans, and emphasizes deployments in smart exhibitions, livestreaming, marketing, and cultural heritage with capabilities such as realistic interaction, voice-driven animation, and rapid content generation.
(4utech.com is not out of business; the company remains active in the digital human sector, with ongoing products and services and no credible reports of shutdown or bankruptcy, indicating that access issues from Australia are likely due to network, DNS, or regional connectivity factors rather than company closure.)
Company name variants, English:
4Utech: The primary English brand name used publicly for the company behind the 世优科技 brand family.
4uTech: A stylized casing variant of the same 4Utech brand name used in some official-facing contexts.
4UTECH: An all-caps styling variant used in some event, directory, and social listings referring to the same brand.
4U Tech: A spaced variant of the 4Utech brand name used in some media, listings, and channel naming.
Shiyou Technology: A pinyin-based English rendering used in some business profiles to represent 世优科技.
Shiyou Technology (Beijing) Co., Ltd.: A longer English corporate-style rendering used in some directories for the same firm associated with 4Utech/世优科技.
Shiyou (Beijing) Technology Co., Ltd.: A minor word-order variant of the above English corporate-style rendering used in some listings.
Shiyou Keji: A mixed English–pinyin variant (“Keji” = 科技) used in some databases for 世优科技.
Seyo Technology: A non-pinyin English rendering used in some English contexts for 世优科技, reflecting a pronunciation-based romanization rather than a formal legal translation.
Company name variants, Chinese:
世优（北京）科技股份有限公司: The full legal company name shown in the footer of the official 4utech.com website.
世优(北京)科技股份有限公司: A common punctuation variant of the same legal name used by business-information platforms.
世优（北京）科技有限公司: A former legal-name form reported by business-information platforms as the company’s earlier name before it became a 股份有限公司.
世优(北京)科技有限公司: A punctuation variant of the former-name form that appears in some recruiting and company-profile listings.
世优科技: The most common shortened Chinese name used in branding and media to refer to 世优（北京）科技股份有限公司.
Product name variants:
世优波塔 / 波塔（BOTA）AI数字人智能体: The company’s flagship multimodal interactive AI digital human system positioned for deployment across terminals such as large screens, holographic pods, all-in-one units, and web/mobile endpoints.
世优BOTA: A commonly used name for the BOTA product line in launch/event framing and third-party coverage describing the same interactive AI digital human product.
波塔BOTA API / BOTA API: An API offering positioned to let enterprises integrate real-time interactive digital human (voice and expression) capabilities into their own products.
波塔AI数字人一体机 / 波塔一体机: An integrated hardware-software “all-in-one” terminal combining display, compute, sensing (camera/mic), and digital human software for on-site interactive service scenarios.
波塔AI数字人大屏中间件: A “large-screen middleware” form factor described as part of the BOTA series used for fixed-screen deployments (e.g., exhibition halls and similar venues).
数字人工厂: A product/service offering framed as high-precision 3D digital human customization and rapid production for multiple stylistic outputs.
2D真人数字人: A 2D “real-person” digital human offering described for scenarios such as digital staff, intelligent customer service, news/video presentation, and short-form content production.
数字幻境演播室: A virtual studio offering described as supporting XR/AR/VR production for virtual livestreams, online events, and recorded video programs.
幻界VR大空间: A VR large-space experience offering described as combining large-space VR and MR with digital exhibition/performance and digital-human integration.
AI数字人全栈方案: A packaged “full-stack” digital human solution positioned as covering industries, scenarios (guide/reception/Q&A/explainers), and multiple terminal types.
AI数字人交互一体机: A brochure-framed interactive all-in-one device concept for “face-to-face” real-time interaction in public-service contexts (finance, enterprise, government, tourism, etc.).