X-Brain Raises Four Rounds in Two Months, Valuation Exceeds 20 Billion Yuan, Becomes First Embodied Brain Unicorn in Greater Bay Area

Embodied intelligence company X-Brain has completed B+, B++, and C rounds of financing within two months, following the earlier B round. All four rounds have closed, with post-investment valuation exceeding 20 billion yuan, making it the first and only embodied intelligence company in the Greater Bay Area valued over 20 billion yuan. The investor lineup includes internet giants (Meituan, Alibaba, ByteDance, Xiaomi), industrial capital (58 Group, Chery, Honor), national teams (China Mobile, China Insurance Investment, SDIC Innovation), and top VCs (Sequoia China, IDG Capital, Source Code Capital, etc.), totaling over 30 institutions. Xiaomi's strategic investment has participated in three consecutive rounds.

Core Technology: World Unified Model WALL-B

X-Brain adheres to the full end-to-end general embodied large model approach. In April this year, it released WALL-B based on the "World Unified Model (WUM)" architecture, which unifies training of vision, language, action, and physical prediction, eliminating information loss between modules. The model possesses native proprioception (perceiving its own size without external sensors) and a physical worldview, with strong zero-shot generalization capabilities. It has entered long-term testing in real homes.

Rapid Iteration: Open-Source Models and World Model

• WALL-OSS-0.5: With only pre-training, it achieves over 80% autonomous completion rate in 4 out of 17 real-world tasks, matching the performance of fine-tuned models, validating the feasibility of "pre-training as deployment."
• WALL-WM: The world's first event-level predictive world model, aligning multimodal data through events to understand physical evolution laws.
• Forming a technology matrix of "closed-source flagship + open-source base + open-source world model."

Data and Hardware Closed Loop

• Data: The open-source XRZero-G0 solution reduces effective training data cost by 95%, only 1/20 of traditional solutions.
• Hardware: The wheeled dual-arm home robot entered the first batch of homes in May, with visual desensitization capability; partnered with 58.com to launch human-machine collaborative housekeeping services, priced on par with pure human labor.
• Industrial scenarios: Verified on automotive parts production lines.

Industry Impact and Challenges

X-Brain has gathered investments from four major internet giants, with industrial capital covering home services, automotive, and consumer electronics, and continuous support from national teams, reflecting capital's bet on the "embodied brain" rather than a single hardware body. However, general embodied intelligence is still in its early stages. Long-term home usage feedback, commercialization replication efficiency, and open-source ecosystem activity remain subsequent tests.