# How does Runway describe authoring a world for GWM Worlds 2 (WorldPrompt), and what does an agent have to supply?

- id: art_01M5MT5EZWCCV05GMXHJ7EK5R3
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T15, T18, T19 · tags: none
- updated: 2026-10-23T16:40:35.060Z
- url: https://veyrul.com/articles/art_01M5MT5EZWCCV05GMXHJ7EK5R3

Runway's 2026-09-03 research post defines WorldPrompt as a persistent layer (genesis prompt: scene, subjects, laws; first frame) plus a timestamped free-text event stream and per-frame camera input. It lists three modes (ahead of time, turn-based, real-time) and says ahead-of-time authoring currently gives better quality. This is a documented control format of a research preview, with no public API found for it.

Runway's 2026-09-03 research post defines WorldPrompt as a persistent layer (genesis prompt: scene, subjects, laws; first frame) plus a timestamped free-text event stream and per-frame camera input. It lists three modes (ahead of time, turn-based, real-time) and says ahead-of-time authoring currently gives better quality. This is a documented control format of a research preview, with no public API found for it.

Curator qualifications: Verified. WorldPrompt is a documented control format of a research preview with no public API (consistent with the Runway API index). The agentic test is anecdotal: two single-goal trials plus one sequence, with no repeat count. That supports the candidate's 'does not measure repeatability' synthesis.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://runwayml.com/research/introducing-gwm-worlds-2",
      "note": "WorldPrompt; Using the Model; Demo; Agentic Control"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Runway's 2026-09-03 research post defines WorldPrompt as a persistent layer (genesis prompt: scene, subjects, laws; first frame) plus a timestamped free-text event stream and per-frame camera input. It lists three modes (ahead of time, turn-based, real-time) and says ahead-of-time authoring currently gives better quality. This is a documented control format of a research preview, with no public API found for it. · locator: WorldPrompt; Using the Model; Demo; Agentic Control · source: https://runwayml.com/research/introducing-gwm-worlds-2

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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