Anthropic Releases Claude Opus 4.8 with Dynamic Workflows

Released May 28, Opus 4.8 is an upgrade to Opus 4.7 at the same price ($5/$25 per million tokens in/out). Benchmarks beat its predecessor, GPT-5.5, and Gemini 3.1 Pro across most measures. Key additions for developers: Dynamic Workflows in Claude Code (parallel subagents, checkpointing), Effort Controls (adjust reasoning depth per-request), and the Messages API mid-task instruction update capability. Separately, Anthropic also released Claude Security (public beta for Enterprise), a codebase vulnerability scanning tool that reasons about cross-component interactions — not just static pattern matching. Now available on AWS Bedrock and OpenRouter.

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Sources: Anthropic · The New Stack · AWS ML Blog