Anthropic is releasing a new version of its most powerful artificial intelligence model as rival OpenAI nears the long-awaited launch of its GPT-5 system. Anthropic is set to announce Tuesday the release of Opus 4.1, an update to its high-end AI model that the company claims is more capable at coding, research and data analysis. The new offering is also better at fielding complex multi-step problems, the company said, positioning it as a more effective AI agent....