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OpenAI Acquires Promptfoo, Elevates AI Security to First-Class + Launches GPT-5.4 with Computer-Use Agent

OpenAI has acquired Promptfoo, a red-teaming platform used by more than 25% of Fortune 500 companies, while also launching GPT-5.4, which enables AI agents to control computers directly—clicking, typing, opening apps, and operating through the screen itself. It also introduced Codex Security for automated vulnerability scanning.

10 Mar 20265 minTechCrunch
OpenAIGPT-5.4AI SecurityComputer UsePromptfooAI

OpenAI Makes Two Moves at Once: Security + Capability

This week, OpenAI announced two major developments that clearly signal the company is seriously preparing for the era of enterprise-grade Agentic AI.

1. Acquiring Promptfoo — AI Red-Teaming Becomes Built-In

Promptfoo is an open-source platform for testing AI security, already used by more than 25% of Fortune 500 companies. It covers everything from prompt injection testing and jailbreak detection to data leak prevention.

OpenAI announced the acquisition of Promptfoo, with Promptfoo remaining open source under the Apache 2.0 license, while also being integrated into the OpenAI platform as a built-in security layer.

What enterprises will gain:

  • Red-teaming as a service: Test AI systems before deployment to identify vulnerabilities
  • Automated vulnerability scanning: Automatically scan for prompt injection, data exfiltration, and harmful output
  • Compliance reporting: Generate security reports for auditors and regulators

2. GPT-5.4 — AI That Can Use a Computer on Its Own

GPT-5.4 launches with a game-changing feature: native computer-use capabilities. This enables AI agents to:

  • See the screen through screenshots
  • Click the mouse at the required position
  • Type text into applications
  • Open and close apps and navigate between windows

Imagine this: instead of building API integrations for every system, an AI agent can simply “sit in front of the screen” and work like an employee using a computer—opening the ERP, entering data, exporting reports, and sending emails, all without writing a single connector.

Codex Security Agent

Another feature worth watching is Codex Security—an AI agent that automatically scans code for vulnerabilities, detects OWASP Top 10 issues, dependency vulnerabilities, and configuration problems, and recommends remediation steps.

Massive Funding: $110B

OpenAI has also closed a new funding round worth $110 billion—the largest in startup history:

Investor Amount
Amazon $50B
SoftBank $30B
Nvidia $30B

This capital will be used to expand compute infrastructure, advance AI safety research, and further develop the enterprise platform.

Impact on Thai Enterprises

For security teams: Making AI security a built-in feature sends a clear message—organizations deploying AI without red-teaming are falling behind. Consider using Promptfoo, which remains open source, to test your AI systems.

For operations teams: Computer-use capabilities open the door to automating work that previously required people to “sit in front of a screen,” especially in legacy systems without APIs—a very common scenario in Thai enterprises.

For developers: Codex Security helps improve application security without requiring teams to be security experts, making it especially valuable for smaller teams without a dedicated security function.


Sources:

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