Anthropic Leaps Past OpenAI in AI Valuation

Anthropic has ascended to become the most valuable artificial intelligence company, now holding a staggering valuation of $965 billion, which places it ahead of rival OpenAI. This significant financial achievement from its latest funding round has also elevated all seven of Anthropic's co-founders onto the Bloomberg Billionaires Index. Each founder now possesses individual stakes estimated at nearly $8 billion, despite owning less than 1% of the company.

The latest funding round, led by prominent investment firms, saw Anthropic's valuation surpass that of OpenAI, which was previously valued at $852 billion in March. Anthropic's founders have publicly committed to donating 80% of their fortunes, expressing concerns about wealth concentration and its potential impact on democracy.

In parallel with its financial milestones, Anthropic unveiled its newest flagship model, Claude Opus 4.8, on Thursday. The company asserts that Opus 4.8 outperforms competitors like OpenAI's GPT-5.5 and Google's Gemini 3.1 Pro on various synthetic AI benchmarks. Key improvements cited include enhanced "honesty," with the model more adept at acknowledging uncertainties and avoiding unsubstantiated claims.