At its "Intelligence at Work" event, OpenAI announced that it will fold Codex, its coding agent, into ChatGPT over the coming weeks. Alongside that integration the company introduced three upgrades: role-based plugins, inline annotations, and Sites, a feature for building one‑prompt web apps.
What happened and why it matters
Codex, which currently has about 5 million weekly users, has operated as a coding-focused agent. By embedding Codex directly into ChatGPT, those agent capabilities will become available inside the ChatGPT experience, substantially increasing reach because ChatGPT already serves a very large user base. OpenAI emphasized that the fastest‑growing segment of Codex users today are knowledge workers rather than traditional coders, indicating broader adoption across non‑coding workflows.
Competitive and practical implications
On the same day, OpenAI’s models also appeared on AWS Bedrock, a platform often associated with Anthropic’s footprint. The announced features closely mirror Anthropic’s Cowork product in function: role‑based plugins, inline annotations, and quick web app creation address similar user needs.
The strategic divergence is distribution: Anthropic’s Cowork asks users to adopt a separate app, while Codex’s integration into ChatGPT makes agent capabilities effectively default for ChatGPT users — removing an installation step and increasing the likelihood that users encounter and use agents in their day‑to‑day work.
Consequences
As agent capability becomes commoditized, competition shifts from purely technical superiority to which agent becomes unavoidable in users’ workflows. OpenAI’s move to make agents the default inside ChatGPT, together with availability on AWS Bedrock, positions the company to capitalize on default placement rather than only on depth of capability.
Quick summary
- Codex will be integrated into ChatGPT in the coming weeks.
- New features: role-based plugins, inline annotations, and Sites.
- Codex has about 5 million weekly users, with knowledge workers as the fastest‑growing group.
- OpenAI models also became available on AWS Bedrock the same day, intensifying competition with Anthropic.



