(Reuters) -Artificial-intelligence company Anthropic said on Tuesday it had raised $13 billion at a $183 billion post-money valuation led by investment firm ICONIQ.

Investor enthusiasm towards AI startups has stayed strong despite some doubts over tech industry spending.

Anthropic's run-rate revenue, which had grown to approximately $1 billion at the beginning of 2025, was more than $5 billion by August, according to a company blog.

Amazon.com ( AMZN )-backed Anthropic said the latest funding round was co-led by Fidelity Management & Research and Lightspeed Venture Partners.

Other major investors include the Qatar Investment Authority, Blackstone and Coatue.