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Anthropic, OpenAI, Google, and Meta each published prompt injection disclosures in 2026, but a comparison published by VentureBeat on June 1 found no two companies measure the same metrics. The inconsistency makes it difficult for enterprise security teams to compare risk across models. What the Dis

An internal OpenAI reasoning model has disproved a famous 1946 conjecture from Paul Erdős, the first time AI has settled a major open problem in mathematics. Key Points: An OpenAI model disproved the Erdős unit distance conjecture, open for 80 years. The proof leaned on algebraic number theory and p

Anthropic released its newest model, Claude Opus 4.8, this week with a slim lead on an intelligence benchmark, yet it trails the firm's restricted Mythos system on writing software exploits. Key Points: Claude Opus 4.8 narrowly tops the Artificial Analysis Intelligence Index at 61.4, just ahead of G

OpenAI has granted some of Japan's largest banks access to its newest GPT-5.5 model for cyber defense, Finance Minister Satsuki Katayama said Friday. Key Points: OpenAI has opened access to its GPT-5.5 model for some Japanese banks to help blunt cyberattacks, the finance minister said Friday. MUFG,

Anthropic has closed a $65 billion Series H financing round at a $965 billion post-money valuation, the company announced on Friday. The round was led by Altimeter Capital and pushes Anthropic past OpenAI as the most valuable private AI company in the world. The Round Details The $65 billion raise i