# Harvey — Building in Active Guardrails With GPT-5.2

- Company: Harvey (harvey.ai)
- Announced: 2025-12-11T18:15:00+00:00
- Category: new-model
- Coverage: not counted
- Announcement: no
- Group: routine
- Source: https://www.harvey.ai/blog/building-in-guardrails-with-gpt-5-2
- Record: https://forck.live/items/17636-building-in-active-guardrails-with-gpt-5-2
- Subject: Harvey
- Models affected: GPT-5.2

Harvey announced GPT-5.2, a new model available on its platform that improves capability awareness and proactive guardrails for complex legal work. The model demonstrated 89.8% on Harvey's BigLaw Bench evaluation and is better at knowing its own limitations, surfacing constraints to users rather than failing silently. It will roll out to eligible US clients within 24 hours and later in the EU.

## Evidence

Verbatim from https://www.harvey.ai/blog/building-in-guardrails-with-gpt-5-2:

> GPT-5.2 possesses a stronger inherent understanding of these limitations. Instead of failing silently, GPT-5.2 proactively raises these constraints to the user.

---

Record: https://forck.live/items/17636-building-in-active-guardrails-with-gpt-5-2
Catalogue: https://forck.live/llms.txt
Current issue: https://forck.live/feed.md