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Model Launch 1 min read

How we built OWL, the new architecture behind our ChatGPT-based browser, Atlas

Source: OpenAI Blog
October 30, 2025 · 10mo ago
Visual for How we built OWL, the new architecture behind our ChatGPT-based browser, Atlas

Summary

A deep dive into OWL, the new architecture powering ChatGPT Atlas—decoupling Chromium, enabling fast startup, rich UI, and agentic browsing with ChatGPT.

Why It Matters

New model releases reshape what developers can build. As capabilities advance, existing applications can be upgraded and entirely new use cases become feasible — making it critical for engineers to evaluate these releases early.

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