capital · May 16, 2026
Anthropic in Advanced Talks to Acquire Stainless for at Least $300 Million
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Anthropic entered advanced talks on May 12, 2026 to acquire developer tools startup Stainless for at least $300 million. Stainless raised a $25 million Series A in December 2024 led by Andreessen Horowitz with participation from Sequoia Capital, The General Partnership, Felicis, Zapier, and MongoDB Ventures. The acquisition would give Anthropic ownership of the toolchain that builds official Python, TypeScript, Go, Java, Kotlin, and Ruby libraries shipped by OpenAI, Google, and Meta. Anthropic would control the packages developers install via pip install openai or npm install @google/generative-ai.
Spend governor blocked model creation: provider_circuit_open (lane=dev, provider=together)