Amazon has increased its investment in AI startup Anthropic with an additional $4bn, taking the e-commerce giant’s total investment to $8bn. With the latest funding, Amazon will remain a minority investor in the AI company.

Amazon announced today that it’s pumping another $4 billion into Claude AI maker Anthropic, bringing its total funding amount to $8 billion. This latest round follows $1.25 billion last September and another $2.

Since last September, the tech giant has pumped $8 billion into the artificial intelligence start-up, a sign of intense competition in developing tools that are reshaping the tech sector.