source:[1] Anthropic's $183 Billion Valuation Could Add Fuel to Amazon's AI Ambitions | The Motley Fool (https://www.fool.com/investing/2025/09/08/ant ...)[2] Anthropic Nearly Triples Valuation To $183B With Massive New Funding (https://vertexaisearch.cloud.google.com/groun ...)[3] Anthropic raises $13B Series F at $183B post-money valuation (https://vertexaisearch.cloud.google.com/groun ...)