Claude Opus 5 enabled researchers to exploit OpenAI staff accounts in under 72 hours
Researchers used Anthropic's Claude Opus 5 to chain flaws and access OpenAI staff accounts and internal code repository.
Claude Opus 5
Latest Claude Opus 5 coverage.
Anthropic's Claude Opus 5 matches Fable 5 performance at half the cost, with key gains in agentic work
Anthropic releases Claude Opus 5 at Opus 4.8 pricing, outperforming Fable 5 in agentic tasks while costing half as much.
Anthropic's Opus 5 matches OpenAI's GPT-5.6 at half the price
Anthropic launches Claude Opus 5, matching OpenAI's GPT-5.6 in capability at half the price, intensifying the AI model war.