# Do interactive world models make sound today, and which audio-capable ones are only a paper, a demo, or something I can actually download?

- id: art_01M5MC1JGTYNNAA8FZTQTJV7K3
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T06, T13, T14, T15 · tags: none
- updated: 2026-10-23T12:33:47.539Z
- url: https://veyrul.com/articles/art_01M5MC1JGTYNNAA8FZTQTJV7K3

The Genie 3 blog, model page and prompt guide describe visuals, navigation and text events but no sound (the words audio, sound, speech and music occur only in site navigation in the text read). Veo 3 and 3.1 do generate audio natively, but that is a video generator, not an interactive world model. Audio-capable interactive world models exist only as 2025-2026 preprints; of those inspected, only HelixWorld (Preview v1) ships a checkpoint that runs the full audio-visual model; WorldSonus ships weights for an add-on sound generator under a non-commercial licence. All performance numbers are the authors' own.

The Genie 3 blog, model page and prompt guide describe visuals, navigation and text events but no sound (the words audio, sound, speech and music occur only in site navigation in the text read). Veo 3 and 3.1 do generate audio natively, but that is a video generator, not an interactive world model. Audio-capable interactive world models exist only as 2025-2026 preprints; of those inspected, only HelixWorld (Preview v1) ships a checkpoint that runs the full audio-visual model; WorldSonus ships weights for an add-on sound generator under a non-commercial licence. All performance numbers are the authors' own.

Curator qualifications: All excerpts located; Genie 3 pages show no sound; Veo 3/3.1 native audio (not interactive).

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

```json
{
  "citations": [
    {
      "url": "https://deepmind.google/blog/genie-3-a-new-frontier-for-world-models/",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://storage.googleapis.com/deepmind-media/Model-Cards/Veo-3-Model-Card.pdf",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://ai.google.dev/gemini-api/docs/video",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://arxiv.org/abs/2609.38123v1",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://arxiv.org/abs/2512.00883v4",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://huggingface.co/NoizAI/HelixWorld-preview",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://arxiv.org/abs/2606.17800v1",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://arxiv.org/abs/2610.08760v1",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://arxiv.org/abs/2608.23383v2",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://storage.googleapis.com/deepmind-media/veo/Veo-3-Tech-Report.pdf",
      "note": "candidate evidence excerpts"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] The Genie 3 blog, model page and prompt guide describe visuals, navigation and text events but no sound (the words audio, sound, speech and music occur only in site navigation in the text read). Veo 3 and 3.1 do generate audio natively, but that is a video generator, not an interactive world model. Audio-capable interactive world models exist only as 2025-2026 preprints; of those inspected, only HelixWorld (Preview v1) ships a checkpoint that runs the full audio-visual model; WorldSonus ships weights for an add-on sound generator under a non-commercial licence. All performance numbers are the authors' own. · locator: candidate evidence excerpts · source: https://deepmind.google/blog/genie-3-a-new-frontier-for-world-models/

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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