Mistral released the open weights of its 1-trillion-parameter AI model Le Chonk, emphasizing sovereign control and competitive coding capabilities. Meanwhile, the US Department of Justice opened an investigation into Nvidia's $13 billion acquisition of Hugging Face, citing competition and customer pressure concerns. Amazon reported mixed third-quarter earnings with strong AWS growth but warned of a cautious holiday sales outlook. Google DeepMind’s Gemini 4 Carbon remains notable for its cybersecurity focus, but remains limited to select users.
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Mistral AI launched Mistral Large 4, or "Le Chonk," a trillion-parameter open model targeting sectors like cybersecurity and finance, using a novel architecture and large context window, though some Chinese models outperform it. Anthropic introduced Claude Haiku 5.5, a smaller, faster, and cheaper model for high-volume tasks, alongside broader Claude updates including animated videos, dashboards, abuse policy changes, and removal of internet access after misuse. OpenAI reported $50 billion in annualized revenue, lower than expected, affecting chip stocks and prompting a $30 billion fundraising effort. OpenAI also rolled out GPT-6 with an interactive Intelligent UI in ChatGPT and started EU-required AI text watermarking, facing safety criticism over Teen Mode and content moderation. These events illustrate competing priorities in AI regarding openness, performance, cost, and safety.
South Korean banks are investigating AI-enhanced cyberattacks, with President Lee warning of new security risks. Mistral launched Large 4, a trillion-parameter multimodal model called Le Chonk, claiming top open-weight AI status outside China. OpenAI released math problem solutions and implemented EU-wide AI text watermarking amid safety culture criticism and Wikipedia bot issues. Anthropic denies government breaches while facing cybersecurity concerns over its Mythos model and offering startups free access.