Nvidia is expanding its open AI model portfolio with a new lineup designed to power autonomous AI agents across enterprise infrastructure and personal computers. The launch reflects the company’s growing focus on making AI agents easier to deploy, customize and run locally, rather than relying exclusively on proprietary models hosted in the cloud. The new releases include Nemotron 3.5 Super VL, a large model aimed at enterprise applications, alongside two smaller models in the Nemotron 3.5 Bolt family designed for local execution on AI-powered PCs and workstations. Nvidia says the models are optimized for agentic workflows, where AI systems must...

OpenCode, an open-source AI coding assistant that has been gaining popularity as an alternative to tools such as Claude Code and Cursor, has suffered a security breach that left some developers facing hundreds of dollars in unexpected AI charges. The incident affected 1.4% of users of OpenCode Console, the platform’s online service where developers can store API keys to connect AI models from providers including OpenAI, Anthropic and Google. According to OpenCode, attackers gained access to an older system and potentially obtained credentials that allowed them to make unauthorized requests to these services. The company said it had notified all...

A new AI assistant is entering the increasingly crowded personal-agent market with a familiar promise but a different emphasis: Hark wants to become the software that can actually operate your digital life while keeping privacy at the center of the experience. Hark, the latest startup from serial entrepreneur Brett Adcock, has launched Hark Pro to the public after spending months developing the product. The service is available for free, with paid plans designed for users who need higher usage limits. Rather than positioning Hark as another chatbot, the company describes it as a new interface for interacting with computers. Its...

Content moderation has long relied on AI classifiers trained to identify harmful or policy-violating material. But as online platforms face an ever-growing volume of posts, messages and user-generated content, a new category of AI models could offer a faster and more flexible way to make moderation decisions. Musubi, an AI startup focused on decision models, is betting on that opportunity with PolicyLM-1.7B, a lightweight open-weight model designed specifically for real-time content moderation. The company says the model can take a platform’s content policy written in ordinary language and apply it to incoming content in less than 50 milliseconds. The key...

A new AI assistant is entering one of Silicon Valley’s fastest-growing markets with a proposition that could become increasingly important as personal AI agents gain access to users’ most sensitive information: keep the data on the device. Underdog, developed by startup Conway Research, launched in invite-only beta this week under the leadership of self-taught programmer Sigil Wen. The assistant is designed to run entirely on users’ own computers rather than sending their personal data to cloud-based AI systems. That approach puts Underdog in direct competition with a growing group of personal AI assistants, including Instinct and Meta’s Muse, which can...