OpenAI Chronicle Lets Codex Watch Your Screen and Remember

OpenAI just launched Chronicle, a new feature that gives its Codex coding assistant the ability to watch your screen and build lasting memories from what it sees. Available as a research preview for Pro subscribers on Mac, Chronicle marks a significant shift in how AI tools interact with developers.

How Chronicle Works

Chronicle runs in the background on macOS and periodically captures screenshots of your activity. These screen captures are stored temporarily on your computer before selected frames are sent to OpenAI servers for processing. The system then creates structured memories, which are saved locally as markdown files you can read and edit.

Think of it as giving your coding assistant a persistent notebook. Instead of starting every conversation from scratch, Codex can now reference what you were working on earlier. It recognizes the tools you use, the code you write, and the workflows you follow. This means fewer repeated explanations and more productive coding sessions.

Privacy Trade-Offs and Limitations

The feature comes with notable trade-offs. Chronicle stores its memories as unencrypted files on your Mac, raising questions about data security. The screen captures also consume rate limits faster, meaning Pro subscribers may hit usage caps sooner than expected.

OpenAI has made Chronicle opt-in only, and users can delete memories at any time. However, the feature is not available in the European Union, United Kingdom, or Switzerland at launch due to regional privacy regulations.

Security researchers have also flagged potential prompt injection risks. Since Chronicle processes screen content automatically, a carefully crafted image or text displayed on screen could theoretically influence how Codex responds to future prompts.

Despite these concerns, Chronicle represents a meaningful step toward AI assistants that truly understand developer context. Traditional coding assistants powered by large language models, or LLMs, lose all context between sessions. Chronicle solves this by creating a persistent memory layer that survives between conversations. The feature is currently limited to ChatGPT Pro subscribers running macOS. OpenAI has not announced plans for Windows or Linux support, nor a timeline for broader availability beyond the research preview.