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GPT‐5.4 in Deep
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.
From the source
GPT-5.4 now powers Amp's deep mode .
ampcode.com
Visit source ↗ampcode.com
ModelsGPT-5.4
- Announced
- 26 Mar 2026
- Detected
- 03 Sep 2026 14:35 UTC (+160d after)
