Fill forms and review tax filings with Codex computer use

Secondhand accounts of OpenAI staff using Codex computer use for forms and PDFs, including one tax filing review that caught an error worth thousands.

What They Did

This is a secondhand write-up of OpenAI engineers describing Codex computer use. The agent works through a visible on-screen pointer, clicking and typing in apps and sites that have no API or connector. Staff described asking it to fill out forms, dig through PDFs, and review one engineer's personal tax paperwork.

How It Went

The tax review caught an error in the user's favor worth thousands of dollars. The article gives no timings, step-by-step details or failure cases, and only a single tax example.

Worth Knowing

Connectors like Slack or email are faster and use fewer tokens than clicking through a UI, so use computer use mainly where no integration exists.