Developer open-sources Vanai, an MMORPG built iteratively with AI models
A Reddit user posting in r/ClaudeAI as /u/ffmegaman said they have open-sourced their MMORPG, Vanai, under the MIT license, after delaying the release for about two months as new AI models kept launching. The developer said the game was first built with a model they call Fable, then remodelled with Astra for 3D assets and later with Opus 5.5, which they say ran parallel multi-agent remodelling of thousands of assets and also produced the trailer and audio. They described the game as still having rough edges and said it runs in Chrome, with self-hosting instructions included in the repository; the claims about model capabilities are self-reported and not independently verified.
The post is a concrete, developer-reported example of how successive model releases reshaped one game project's asset pipeline, although the capabilities attributed to each model remain unverified.