Anthropic ships Claude Opus 4.8 with dynamic workflows for larger agent tasks

Claude Opus 4.8 belongs near the top because it is a frontier-model release tied directly to agentic work. Anthropic says the model is available now at the same regular price as Opus 4.7, with $5 per million input tokens and $25 per million output tokens, while fast mode is 2.5x the speed and three times cheaper than the previous fast-mode pricing. The release also adds effort controls in claude.ai and Cowork, plus dynamic workflows in Claude Code, a research-preview feature that lets Claude plan large tasks, run many parallel subagents, and verify outputs before reporting back. Anthropic says Opus 4.8 is more reliable at flagging uncertainty and about four times less likely than Opus 4.7 to let flaws in its own code pass without comment. Watch adoption in long-running coding, legal, finance, and enterprise-agent workflows.

Key details: Claude Opus 4.8, Anthropic, May 28, 2026, dynamic workflows, Claude Code, effort controls, $5 per million input tokens, $25 per million output tokens.

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