Jan 7 (Reuters) - Anthropic is planning a multi-billion-dollar fundraise that would value the Claude chatbot maker at $350 billion, two sources told ​Reuters on Wednesday. This represents a nearly double increase in its ‌valuation from about four months ago. The AI startup plans to raise$10 billion in a ‌funding round with Singapore's sovereign wealth fund GIC and Coatue Management planning to lead the financing, the Wall Street Journal first reported on Wednesday. The round could close within weeks, ...