Introducing Claude Opus 4.8

Original: Claude Opus 4.8

Anthropic upgraded Claude Opus with stronger agentic, coding, reasoning, and collaboration capabilities at unchanged standard pricing.

Anthropic introduced Claude Opus 4.8 as an upgrade over Opus 4.7, emphasizing benchmark gains, sharper judgment, and more reliable agentic work. The launch also adds dynamic workflows in Claude Code, effort controls in claude.ai and Cowork, and Messages API support for system entries inside messages. Standard pricing remains unchanged, while fast mode is faster and substantially cheaper than before.

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