Claude Opus 4.8

Anthropic has released Claude Opus 4.8, an upgraded version of its AI model with improved performance across coding, reasoning, and agentic tasks, available at the same price as its predecessor. The update introduces new features including user control over effort levels on claude.ai, dynamic workflows in Claude Code for large-scale problems, and a 3x cheaper fast mode. Early testers report the model demonstrates superior judgment, reliability, and efficiency across various professional applications including legal work, research, and autonomous engineering tasks.