From a multi-agent system surpassing human grandmasters to terrorist groups weaponizing AI chatbots, the last two weeks highlight agentic AI is reshaping both competition and security landscapes. Here's your biweekly recap of everything that happened in the space, in the latest edition of AI Agents Pulse: 1️⃣ SpaceXAI releases Grok 4.5, an 'Opus-class model' the company says has 'twice greater token efficiency' than other leading models, positioned as a workhorse for coding, research, and knowledge work. 2️⃣ AI chip startup SambaNova raises $1 billion in a round led by General Atlantic, reaching an $11 billion valuation as investors continue to back Nvidia challengers. 3️⃣ S&P Global downgrades Oracle's credit rating to BBB-, citing OpenAI as a key credit risk due to Oracle's massive data center contractual obligations. 4️⃣ Databricks adopts Chinese open-source model GLM 5.2 as its default coding engine after it matched Anthropic's Opus 4.8 performance at a lower cost. 5️⃣ Microsoft's carbon emissions rose 25 percent in 2025 to 34 million metric tons, driven primarily by the expansion of its datacenter infrastructure, per the company's 2026 sustainability report. 6️⃣ Over 200 economists and AI researchers, including Nobel laureates, warn that the window to prepare for AI's economic impact is closing fast. 7️⃣ General Intuition, a Bezos-backed startup, raises $320 million at a $2.3 billion valuation to develop physical AI world models trained on gaming data. 8️⃣ GrandCode, a multi-agent reinforcement learning system, becomes the first AI to consistently beat all human participants in live Codeforces contests. 9️⃣ A study finds terrorist groups like Boko Haram are using major AI chatbots for attack planning and weapons development, with safety filters failing to prevent misuse.