Meta has introduced a new tool to track employees' computer activity to train its AI models, but after criticism from staff, the company is now allowing workers to opt out of the tracking for up to 30 minutes at a time. The tool, called the Model Capability Initiative, was initially met with backlash from employees who felt it was an invasion of their privacy. Meta has also introduced new controls to reduce the impact of the tool on laptop battery life. The company has declined to comment on the record about the changes.