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Crypto

DeFi down 4 percent while bitcoin falls 22 percent; Bitwise says quiet rerating underway

DeFi tokens have shown a relatively resilient trend versus bitcoin over the past month, raising the possibility of a market rerating. Bitwise said its DeFi index fell 4 percent in June while bitcoin dropped about 22 percent, an unusual divergence given DeFi’s typically higher volatility. It cited growing institutional use and improved token economics but noted index concentration in Hyperliquid’s HYPE and a decline in total value locked. It highlighted U.S. regulation and stablecoin expansion as key variables.

AI & Enterprise

Perplexity cuts reasoning costs with Chinese open-source model, claims Claude Opus-level performance at one-third the cost

Perplexity released a research preview of a model it post-trained from Chinese open-source AI model GLM 5.2 for its agent system. It said the model delivers performance comparable to Anthropic\'s Claude Opus 4.8 at about one-third of the cost, routing most tasks to GLM 5.2 and sending only difficult ones to Opus 4.8. The company said the approach reduced costs versus using Opus for all tasks.

AI & Enterprise

MSIT, KISA publish AI security red-teaming guide

South Korea\'s Ministry of Science and ICT and the Korea Internet & Security Agency published an \"AI Security Red-Teaming Guide\" to help domestic companies assess AI models, data and AI agents from an attacker’s perspective. The guide presents practical standards for responding to generative AI threats such as prompt injection, jailbreaks, hallucinations and agent hijacking, and expands testing scope to data pipelines, interfaces, prompts, APIs and infrastructure. It also classifies eight threat types and five risk levels, and urges service-specific, repeated testing and multidisciplinary red teams.