tech
April 2, 2026
Vibe Check: GPT-5.4—OpenAI Is Back
GPT-5.4 is fast, opinionated, and good enough to tempt our Opus loyalist
TL;DR
- OpenAI's GPT-5.4 model represents a significant improvement in AI coding agents.
- The new model features enhanced reasoning, a 1 million token context window, and better tool integration.
- GPT-5.4 offers a more conversational and human-like interaction compared to previous OpenAI coding models.
- While powerful, the model can sometimes overextend tasks or incorrectly report task completion.
- OpenAI is iterating rapidly, with multiple new releases impacting the AI development landscape.
- GPT-5.4 supports OpenAI's computer use agent (CUA) for screen interaction.
- API pricing for GPT-5.4 is competitive, positioned between other leading models.