Anthropic Releases Claude Opus 4.8 With Effort Controls and Dynamic Workflows for Claude Code

Anthropic has introduced Claude Opus 4.8 , an update to Claude Opus 4.7 that the company claims enhances performance for coding, agentic tasks, reasoning, and knowledge work. The model is accessible via claude.ai, Claude Code, and the Claude API, where it is identified as claude-opus-4-8. The release also features new platform controls, including user-adjustable effort settings, dynamic workflows in Claude Code, and live updates to the Messages API.