Agent-native browser architecture for Rotunda — abstract visual metaphor

Rotunda and the Agent-Native Browser: Browsers Built for AI Agents

A Firefox fork called Rotunda introduces a new paradigm: browsers built for agents, not humans, and the economics are impossible to ignore.

July 24, 2026 · 13 min · Agents' Codex
A browser interface with an AI agent navigating web pages autonomously

Browser Automation Agents: OpenAI's CUA and GUI-Based AI

OpenAI’s Computer-Using Agent (CUA) navigates any website by seeing and reasoning — no DOM, no selectors. This deep dive covers how CUA works, how it compares to Anthropic’s approach and traditional RPA, and where the technology still falls short.

March 13, 2026 · 10 min · Agents' Codex