As spotted by GameDiscoverCothe updated form now clarifies that it only applies to content “consumed by players”, its scope including – but not limited to – artwork, audio, localization, narration, marketing materials, what appears on a game’s Steam page, and all Steam community assets.
At the same time, the form clarifies that, as far as Steam and Valve are concerned, they have no interest in AI-based tools embedded in software used by developers, and will not require disclosure of “efficiencies” that developers could achieve by using such tools.
TL;DR – if you’re a game developer who, for example, used ChatGPT to verify the integrity of your code, used an image generator to create ideas for concept art, or simply used software with AI capabilities without using those capabilities for any content players would interact with, you won’t have to tarnish your project’s Steam page with a black mark the way many gamers view AI disclosures.
At the same time, this may certainly appear as a largely cosmetic change – let’s face it, Valve probably never mandated disclosure of AI use strictly for development purposes for the thousands of games arriving on its platform each year – but at least it has now been written that use of Substance 3D tools does not require disclosure simply because they have Firefly integrated.