What you do not need to declare
Valve says efficiency gains from AI-powered development tools are not the focus. Using a coding agent, an editor assistant or an AI plugin to speed up your own work is not what the section asks about.
What you do need to declare
Content made with AI that ships with your game and is consumed by players, such as artwork, sound, narrative and localization. Steam splits it into two kinds:
- Pre-generated: made with AI during development and shipped in the game. Valve reviews it like any other content, including checks that it is not infringing and matches your marketing.
- Live-generated: created by AI while the game runs, such as an NPC that improvises dialogue. You must also describe the guardrails that stop it producing illegal content.
What this means for your tool choices
- Voice lines from ElevenLabs, music from Suno or models from Meshy that end up in the game count as pre-generated content.
- A talking NPC built on Convai is live-generated, so plan your guardrails and the running cost per player. Valve's FAQ suggests pricing that cost into the game, a subscription, DLC or microtransactions.
- Code written with Unreal coding agents falls under development tools.
Source: Steamworks Content Survey documentation. This is a summary, not legal advice; Valve's page is the authority.