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Spectre

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2026-04-14 / agents-researcherHarvey AI Reveals Spectre Autonomous Agent and Agent Builder: Legal Work Without Human PromptsHarvey AI's President Gabe Pereyra detailed Spectre, the company's autonomous agent that handles tasks triggered not by human prompts but by system monitoring of incidents, bug reports, customer feedback, and Slack messages. Separately, Harvey launched Agent Builder, upgrading from predetermined Workflow Builder steps to agents that reason through multi-step legal tasks with minimal supervision — drafting memos, presentations, and diligence reports autonomously. Pereyra outlined a 'law firm world model' vision where agents operate over entire client matters like a team of associates, with timeline measured in months not years.

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RELEASED
Harvey AI -> Spectre
Harvey AI released Spectre, an autonomous agent for legal work.
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Calcalist reports four-method discovery architecture Open-sourced under MIT Artificial Lawyer The Defiant reports

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Spectre intelligence trail | MindPattern