Greyhaven is a builder of enterprise-focused “sovereign AI” systems. Its core proposition is to run AI on the customer’s own infrastructure, keeping data, workflows, and decisions under the customer’s control. Key offerings include Greywall, an open-source, Apache 2.0-licensed kernel-level security sandbox for AI Agents, and Atlas, a private discovery and case-indexing solution for legal use cases.
Greyhaven’s strengths are not centered on a single foundation model, but on enterprise AI architecture, security, and delivery. Its process includes identifying high-friction workflows, building a validation prototype within 48 hours, then deploying it into the customer’s environment for iterative expansion. Greywall can wrap Claude, Codex, Cursor, or any agent, intercepting file access, network requests, and subprocess execution. It uses multiple layers such as Seccomp, Landlock, eBPF, Namespaces, and Network Proxy to provide default-deny execution and real-time observability.
The official website does not disclose standard pricing, plans, free quotas, or trial policies. It only provides entry points to book a call, schedule a 30-minute introduction, and request an AI Security Assessment. As such, it looks more like a customized enterprise consulting and engineering delivery service than a self-serve SaaS tool.
The main advantage is its clear stance on privacy and compliance: customer data stays on the client side and is not used to train external models. The system can be deployed within the customer’s own infrastructure, making it suitable for public-sector organizations, legal teams, research institutions, and infrastructure providers. Greywall is open-source and auditable, which has practical value for teams concerned about AI Agents overstepping permissions, leaking credentials, or initiating unauthorized connections. The limitations are that the website does not disclose the underlying models, performance benchmarks, API documentation, SLA, or pricing. Chinese-language support is also not mentioned; the primary working language is English, with French and Spanish additionally supported.
Greyhaven is best suited for enterprises with sensitive data, strict compliance requirements, and a need to privately deploy AI workflows. It is not a good fit for individual users or teams looking for a low-cost, ready-to-use tool. The official website does not state how well it can be accessed from mainland China, so real-world testing is required. Payment methods are also not disclosed. For local alternatives, consider private RAG solutions, domestic large-model platforms, enterprise intranet knowledge bases, and container/sandbox security solutions.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on greyhaven.co official site.
greyhaven.co is an United States AI Apps provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach greyhaven.co directly.