The deal gives Anthropic tighter control over how developers connect Claude to software and business systems as AI vendors race to simplify agent development.
Anthropic acquired SDK startup Stainless, signaling a deeper push into developer tooling as AI labs compete beyond model performance.
Stainless, a New York-based startup, will wind down all hosted products as part of the acquisition.
Anthropic acquired Stainless, the SDK compiler behind OpenAI, Gemini and Llama. The deal hands one AI lab structural leverage over rivals' developer ecosystems.
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