As LLMs cannot grow infinitely large but do improve with size, researchers must find ways to make the technology effective at smaller scales. One well-known method is Mixture-of-Experts, where an LLM activates only a portion of itself to generate a response (text, photo, video) based on a prompt. This makes a larger model effectively smaller and faster during operation. mHC promises to be even more fundamental. It offers the chance to increase model complexity without the pain points of the past.
On Monday, Anthropic released Claude Sonnet 4.5, a new AI language model the company calls its "most capable model to date," with improved coding and computer use capabilities. The company also revealed Claude Code 2.0, a command-line AI agent for developers, and the Claude Agent SDK, which is a tool developers can use to build their own AI coding agents.