# Amp — GPT‐5.4 in Deep

- Company: Amp (ampcode.com)
- Announced: 2026-03-26
- Category: model-update
- Coverage: not counted
- Announcement: yes
- Group: models
- Source: https://ampcode.com/news/gpt-5.4
- Record: https://forck.live/items/7753-gpt-5-4-in-deep
- Subject: Amp
- Models affected: GPT-5.4

Amp announced that GPT-5.4 now powers its deep mode. The model was tuned to behave like GPT-5.3-Codex and is faster and better at coding. Users can access it via the command palette or editor extension, with options for deep^2 and deep^3 reasoning levels.

## Evidence

Verbatim from https://ampcode.com/news/gpt-5.4:

> GPT-5.4 now powers Amp's deep mode .

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Record: https://forck.live/items/7753-gpt-5-4-in-deep
Catalogue: https://forck.live/llms.txt
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