# Harvey — The Brief: April 2026

- Company: Harvey (harvey.ai)
- Announced: 2026-04-09T15:00:00+00:00
- Category: capability-change
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://www.harvey.ai/blog/the-brief-april-2026
- Record: https://forck.live/items/17585-the-brief-april-2026
- Subject: Harvey
- Models affected: GPT-5.4

Harvey announced a range of new capabilities for its AI-powered legal platform, including the availability of OpenAI's GPT-5.4 model across Assistant, Vault, and Agent Builder. Users can now edit Word files directly in Assistant, batch-edit multiple documents, and sync folders from document management systems to Vault. The update also introduces a Box integration, custom writing styles, improved Magic Prompt, and expanded legal research sources.

## Evidence

Verbatim from https://www.harvey.ai/blog/the-brief-april-2026:

> Access OpenAI's latest model across Assistant, Vault, and Agent Builder to power complex legal analysis.

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Record: https://forck.live/items/17585-the-brief-april-2026
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