From a supply chain perspective, shadow APIs function as .
: Users treating these as interchangeable substitutes often suffer from degraded output quality without realizing the model is not the official one. 3. Security and Supply Chain Risks Shadow Cheats API
The core finding of the research is that many shadow APIs are . While they claim to offer premium models (e.g., GPT-4), they often route requests through cheaper, inferior, or open-source models. From a supply chain perspective, shadow APIs function as
The study identified . These services are significantly popular in the academic and developer communities; as of late 2025, they had accumulated over 58,000 GitHub stars and were cited in 187 academic papers . 2. Deceptive Model Claims Security and Supply Chain Risks The core finding
The paper proposes and evaluates "model verification" methods to detect these "fakes":
: These APIs may lack the safety guardrails of official versions or, conversely, may be "model poisoned" by the provider.