Google is investing over $1 billion in AI start-up Anthropic, increasing its stake in the company, which is nearing a $60 billion valuation. This follows Google's previous $2 billion commitment to Anthropic, a competitor to OpenAI known for its Claude AI models. The investment is part of Google’s strategy to enhance its AI capabilities amid competition from major firms like Microsoft and Amazon. Anthropic's revenue has surged, though profitability remains uncertain due to high development costs.