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Anthropic releases Claude Opus 4.8

techMay 28, 202619496

Anthropic released Claude Opus 4.8, an Opus-class upgrade that raises coding accuracy, sharpens agentic reasoning, extends how long the model can run autonomously, and improves honesty about its own errors. Opus 4.8 builds on Opus 4.7, is available today at the same price, and can be accessed directly from Anthropic and via AWS. New workflow features and clearer uncertainty signals let developers run longer autonomous agents and rely on more transparent self-assessments, reducing debugging effort and improving suitability for professional knowledge work.

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