OpenAI Unveils GPT-4.5 & Operator Autonomous Agent Infrastructure

OpenAI launches GPT-4.5 alongside the Operator Agent API, bringing native multimodal browser automation, zero-shot DOM interaction, and verified enterprise security controls.

Source: OpenAI Press Release ↗ Published: 2026-08-22

OpenAI has officially launched GPT-4.5 and opened public developer API endpoints for Operator, its autonomous browser automation agent system.

Figure 1: Operator agent infrastructure handling real-time browser session automation.

Enterprise Highlights

Zero-Shot Visual DOM Resolution: Directly identifies and clicks web UI elements without requiring selector brittle paths.
Strict Schema Output: Guarantees JSON output compliance for programmatic API pipelines.
Enterprise Governance: SOC2 Type II compliance with zero data retention for training on enterprise API keys.