Anthropic sees growing potential for language models in cybersecurity. The company cites results from the CyberGym leaderboard: Claude Sonnet 4 uncovers new software vulnerabilities about 2 percent of the time, while Sonnet 4.5 increases that rate to 5 percent. In repeated tests, Sonnet 4.5 finds new vulnerabilities in more than a third of projects.
In a recent DARPA AI Cyber Challenge, Anthropic notes that teams used large language models like Claude "to build 'cyber reasoning systems' that examined millions of lines of code for vulnerabilities to patch." Anthropic calls this a possible "inflection point for AI’s impact on cybersecurity."
Meta is set to start mining users' conversations with its chatbot to target ads and content across all Meta platforms, including Facebook and Instagram. Beginning December 16, 2025, anything users say to Meta AI—by text or voice—will feed into the company's ad and content algorithms. If someone discusses hiking with the AI, for instance, they can expect to see more hiking-related ads, posts, and groups. Meta says it will exclude sensitive subjects like religion, health, and political views from this data collection.
Users can try to limit what shows up in their feeds using settings like "Ads Preferences," but these changes only apply if accounts are linked in the Accounts Center. Meta plans to alert affected users ahead of time by notification and email. The policy will take effect in most regions.
OpenAI has acquired the AI finance startup Roi, known for offering investment advice based on individual financial data. The service will shut down on October 15. Roi's CEO and founder Sujith Vishwajith is the only team member joining OpenAI. The deal supports OpenAI's interest in personalized consumer AI. The purchase price was not disclosed.
ChatGPT still dominates the AI market, but Google Gemini is catching up. Over the past year, Similarweb says Gemini's share of generative AI traffic jumped from 6.5 percent to 13.7 percent. ChatGPT leads at 73.8 percent, down from 87.1 percent a year ago.
The rest of the market is much smaller. DeepSeek holds 3.9 percent, while Perplexity and Grok each have 2.0 percent. Claude sits at 1.8 percent, and Microsoft's Copilot brings up the rear with 1.2 percent. These numbers haven't shifted much for the smaller players. Overall traffic to AI services continues to grow.
