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Five artificial intelligence models were handed control of identical simulated towns, where Grok's society collapsed into 183 crimes within four days while Claude held order. Key Points: Five AI models ran identical 15-day simulations, each governing a town of 10 agents. Grok logged 183 crimes and c

Anthropic released Claude Opus 4.8 on Thursday, pitching the upgraded model as more honest and less prone to inventing facts than the version it replaces. Key Points: Anthropic shipped Claude Opus 4.8 on Thursday, calling honesty its standout gain. The model is roughly four times less likely to let

An unnamed enterprise customer ran up a roughly $500 million bill on Anthropic's Claude in a single month after setting no usage limits or spending caps for its staff. Key Points: One company spent about $500 million on Claude in a single month with no spending caps in place. The bill traced back to

Anthropic released Claude Opus 4.8, claiming the upgraded model outperforms OpenAI's GPT-5.5 and Google's Gemini 3.1 Pro on several coding benchmarks. Key Points: Anthropic launched Claude Opus 4.8 on May 28, pricing it level with the prior 4.7 release. The company says it tops OpenAI's GPT-5.5 and

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