OpenAI Codex super application transformation: desktop background agent and multi-agent workflow

OpenAI’s intensive release period continues this week (April 14-20), and the Codex platform is ushering in a critical moment of super application transformation. The latest data shows that Codex has gained 3 million weekly active users, a 70% month-on-month increase. Its desktop background agent function is redefining the way AI assistants work.

Core conclusion

• From April 14 to 20, 2026, OpenAI continues to advance its blockbuster and intensive release period this week
• Weekly active users of the Codex platform exceeded 3 million, a month-on-month increase of 70%
• Desktop background proxy function now supports direct control of any application on Mac
• OpenAI introduces multi-agent parallel running capabilities in Codex
• Atlas-driven in-app browser enables in-depth understanding and automated processing of web content
• The person in charge of Codex said that it is open to building super applications
• gpt-image-1.5 supports inline image generation and is directly embedded in the workflow

Background and trigger events

• Time of incident: April 14-20, 2026
• Event channels: TechCrunch, OpenAI official blog -Main players: OpenAI, Codex platform

Technical details

• Product: OpenAI Codex (desktop application)
• Core functions: Desktop background agent, multi-agent parallelism, Atlas in-application browser, gpt-image-1.5 inline image generation
• Availability: Open to all Codex users, the background continues to run without interfering with the front-end work

Industry reaction

• Developer Community: Codex super-app transformation marks a major shift in AI assistants from single-task tools to system-level workflow platforms
• Market structure: The super application arms race intensifies, OpenAI Codex vs Perplexity Computer two-line competition

Potential Impact

• The AI assistant track has entered a new stage, and the transition from tools to platforms is taking place.
• Enterprise-level AI applications have entered a period of rapid growth, and a super application ecosystem is forming

Related information

• TechCrunch reports
• OpenAI Codex official blog -The Rundown AI

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