# GPT-5.4 is now available

_Release #009, March 8, 2026. Agent smarts_

GPT-5.4 is now available as a model option in Viktor.

- **GPT-5.4 model.** OpenAI's latest GPT-5.4 is now available as a model option. Select it from your model settings to start using it across all your conversations and tasks.

Source: https://viktor.com/changelog/2026-03-08-gpt-5-4-available