OpenAI Launches GPT-5.4 With Native Computer-Use Capabilities and 1M Token Context
The agentic AI landscape just shifted. OpenAI’s GPT-5.4 — launched March 5, 2026 — isn’t just a model update. It’s a direct bid to own the autonomous agent stack, arriving with native computer-use, a one-million-token context window, and a reworked tool-calling system that slashes token consumption by 47% on MCP benchmark tasks. If you’re building with agent pipelines, this is the model release worth paying attention to. What’s Actually New in GPT-5.4 Native Computer-Use This is the headline feature, and it’s genuinely significant. Rather than bolting computer-use on as a post-hoc capability, OpenAI has built it into GPT-5.4 at the architecture level. The model can observe screen states, click UI elements, type into fields, scroll, and navigate applications — autonomously, without requiring a separate vision model or operator middleware. ...