OpenAI released GPT-5.4 yesterday. Today, you can use it in Frontman.
If you’re managing a design system across multiple teams, this model matters. GPT-5.4 can hold your entire design system documentation, component specs, and conversation history in a single session — and it’s better at translating visual intent into production-ready implementation.
What Changes for Your Workflow
Your full design system in context, all at once. GPT-5.4 supports up to one million tokens — roughly 750,000 words. That’s enough to hold your component library docs, spacing and typography tokens, brand guidelines, and the current task all in one session — while keeping your code safe with Frontman’s local-only architecture. No more re-explaining your system’s conventions halfway through a build.
It can see and operate your browser. GPT-5.4 has built-in computer-use capabilities that complement Frontman’s runtime context. It navigates your app, clicks through flows, and visually verifies that implementations match your specs. When your team ships a new component, Frontman can check that it actually looks right — not just that the code compiles.
Smarter tool usage across your stack. Teams at scale use a lot of tools — Figma plugins, design token pipelines, CI checks. GPT-5.4 is significantly better at finding and using the right tool for the job without you having to guide it step by step. Less hand-holding, more shipping.
Faster reasoning, same quality. GPT-5.4 solves problems with fewer intermediate steps than previous models. For you, that means quicker turnaround on component builds, layout adjustments, and responsive implementations. The back-and-forth shrinks.
Stronger frontend output. Compared to models powering other AI coding tools, GPT-5.4 is noticeably better at complex frontend work — producing more polished, visually accurate results. Design system components come out closer to spec on the first pass, which means fewer review cycles between your design and engineering teams.
How to Use It
GPT-5.4 is now the default for ChatGPT OAuth users in Frontman. If you’ve connected your ChatGPT Pro or Plus account, it’s already available in the model picker.
OpenRouter users can select GPT-5.4 or GPT-5.4 Pro from the model dropdown. Pro offers stronger performance on research-heavy and abstract reasoning tasks — useful when you’re working through complex interaction patterns or auditing system-wide consistency.
No setup needed. Open Frontman, pick the model, start building.
Why This Matters for Growing Teams
Every team that scales past two or three squads hits the same problem: the design system starts drifting. Components get re-implemented slightly differently. Spacing breaks. Brand consistency erodes one PR at a time.
GPT-5.4 in Frontman helps close that gap. It holds your entire system in memory, sees what’s actually rendered in the browser, and builds with your conventions — not generic defaults. The model gets better, and your system stays tighter.
Try it at frontman.sh, or follow our getting started guide.