Bit Infinite closes back-to-back angel and angel-plus rounds, valuation up 10x in three months, RMB45M raised across three rounds since April

Bit Infinite, a Shanghai-based startup founded about a year ago, has closed back-to-back angel and angel-plus funding rounds just three months after an April seed round, pushing its valuation up 10x over that span. Investors across the three rounds included Zhuoyuan Asia, which led the seed, plus Rongyi Capital, Puhua Capital and Yide Capital, with cumulative proceeds reaching RMB45 million (roughly $6.3M). The company builds Arko-T, a 4-billion-parameter model that generates editable, parametric physical 3D designs from text prompts rather than raw mesh shapes, and reports it ranked first on 8 of 12 metrics against seven leading text-to-3D models on the Text2CAD-Bench benchmark. Its consumer tool, Sparkoh.ai, lets global makers generate printable models from natural-language descriptions and feeds every user edit back into model training.

The round underscores investor appetite for structured physical-3D data as an input layer for robotics and embodied-AI training, not only for desktop 3D printing. Rongyi Capital and Puhua Capital have both previously backed humanoid-robot companies, and their move into Bit Infinite signals a bet that dimensioned, assembly-aware 3D data generated at scale through a maker community, rather than licensed CAD libraries, can become upstream infrastructure for design workflows and robot-simulation pipelines alike. Bit Infinite pairs a token-subscription consumer product for overseas makers with an API serving industrial design, robotics-simulation and physical-AI customers that need OpenUSD-compliant assets, tying the consumer data flywheel to a B2B revenue path. The company says a new funding round is already underway, with inbound investor interest rising since the valuation jump.