Manus is a Chinese agentic-AI product built by the startup Butterfly Effect. Its early-2025 demos drew wide industry attention, and the company subsequently became a focal point of US-China cross-border investment politics. Meta agreed to acquire Manus for $2 billion in December 2025; in April 2026 China's regulators prohibited the deal on national-security grounds and ordered the parties to terminate it.
Overview
| Field | Detail |
|---|---|
| Parent company | Butterfly Effect |
| Product | Manus — an AI agent capable of executing multi-step tasks across the web and documents; presented in early 2025 as a Chinese agentic-AI demo |
| Founding team | Chinese tech entrepreneurs |
| Founded | 2023 |
Manus relies on underlying model providers including Claude, DeepSeek, Qwen, and GPT.
The product's March 2025 demos circulated widely. MIT Technology Review wrote in a June 5, 2025 feature that "Manus has kick-started an AI agent boom in China."
Snapshot
Valuation
| Date | Valuation | Round |
|---|---|---|
| 2025-04 | $500M | reported pre-acquisition |
US scrutiny of the Benchmark investment
In April 2025 Manus became a test case for how US authorities would handle American venture-capital stakes in Chinese AI companies. On April 9, 2025, Semafor reported that the US Treasury had announced a review of Benchmark Capital's $75 million investment in Manus AI, a CFIUS-style national-security examination of a US VC's stake in a PRC-based AI startup. On May 9, 2025, Semafor reported that the Treasury was still examining Benchmark Capital's ties to Manus AI.
In response to the review, Butterfly Effect sought to restructure its operations. The Information reported on April 25, 2025 that the company was seeking an ex-China headquarters to allow for US business following the Benchmark round. The company ultimately relocated entirely to Singapore before the Meta deal.
Meta acquisition and the China block
TechCrunch reported on December 29, 2025 that Meta had acquired Manus for $2 billion, an outcome that placed the asset under US ownership.
On April 27, 2026, China's Office of the Working Mechanism for Foreign Investment Security Review, under the National Development and Reform Commission (NDRC), prohibited Meta's $2 billion acquisition of Manus and ordered the parties to terminate the deal. President Xi's National Security Commission characterized the deal as a "conspiratorial" attempt to hollow out China's tech base. The same day, Chinese officials directed Moonshot AI, StepFun, and other tech firms to reject US capital in funding rounds without prior government approval, with similar restrictions under consideration for ByteDance secondary-market trades. (Sources: theinformation.com; wsj.com; ft.com; bloomberg.com)
Council on Foreign Relations fellow Chris McGuire noted on April 27 that Manus had relocated entirely to Singapore before the deal, and argued that "Singapore-washing" no longer protects Chinese-founded startups from Beijing intervention, describing it as an emerging template for how China asserts cross-border jurisdiction over its tech diaspora. According to McGuire, the action was the first instance of China blocking a tech acquisition by a US company on national-security grounds where the target had already relocated outside the PRC, reframing the AI Acquihires pattern such that relocation alone no longer functions as a sufficient settlement mechanism for Chinese-founded AI companies sold to US buyers.
On April 29, 2026, the NDRC's action moved from a block to a final determination. Bloomberg reported the deal as "officially dead" with no path to reauthorization. (Source: bloomberg.com) The Wall Street Journal reported that Meta was preparing to unwind the acquisition even though it had already begun integrating Manus's technology, and that Benchmark and other early investors had already received their proceeds, complicating any unwind path. (Source: wsj.com)
Travel restrictions on founders and reported unwind effort
TechCrunch's coverage of China's expanded travel curbs on top AI researchers, startup founders, and executives at private firms, alongside FT reporting, indicated that as of May 27, 2026 the two co-founders of Manus were barred from leaving China while Beijing investigated whether Meta's $2 billion acquisition ran afoul of foreign-investment rules. The co-founders were reportedly exploring a $1 billion external raise to unwind the Meta deal. (Sources: techcrunch.com; FT)
The travel-curb action extended the posture set out in the April 27 NDRC block from the deal itself to the physical movement of the founders. Together the deal block, the foreign-investment review, and the travel ban formed three instruments Beijing deployed in the same cross-border-tech containment posture. See also US-China AI Competition: Different Races, Different Metrics.
By July 10, 2026, the unwind effort had taken more concrete form: the FT reported that Manus investors and management were discussing unwinding Meta's $2 billion buyout at the same valuation, with Tencent in talks to become the company's largest investor (Source: ft.com). Meta had severed Manus's access to its data the prior month after Chinese authorities ordered the buyout unwound (Source: bloomberg.com).
Manus said on August 11, 2026 that it will "soon return to operating as an independent company" as it separates from Meta, which The Information read as indicating that the reversal of the acquisition is close to final. In a blog post the same day the company said that to comply with regulatory requirements in specific jurisdictions it will delete data generated by certain users on or after December 29, 2025 — the date Meta acquired Manus — between 8:00 a.m. on August 23 and August 24, 2026 (SGT). Affected users can back up data until 7:59 a.m. SGT on August 23 and restore it from 8:00 a.m. SGT on August 25, losing access for two days in between; Manus states the measure is not the result of a security incident (Source: manus.im; theinformation.com).
Relationships
- acquired-by: Meta (December 29, 2025; deal blocked by China April 27, 2026)
- regulated-by: US Treasury (CFIUS review); NDRC (foreign-investment security review)
- depends-on: Underlying model providers (Claude, DeepSeek, Qwen, GPT)
- related: AI Acquihires, CSET + DOJ + CSIS — US-China AI National-Security Axis (composite source summary), Export Controls (AI), AI Sovereignty, planned AI Agentic Browsers or Agentic AI (Manus is a canonical agent demo).
Sources
- MIT Tech Review / Manus has kick-started an AI agent boom in China (2025-06-05)
- Semafor / US Treasury examining Benchmark's ties to Manus AI (2025-05-09)
- Semafor / US Treasury review of Benchmark's $75M investment in Manus AI (2025-04-09)
- The Information / Butterfly Effect seeking ex-China HQ (2025-04-25)
- TechCrunch / Meta just bought Manus (2025-12-29)