Gymnasium is now maintained by the Farama Fpundation, an open-source consortium, not OpenAI. But most RL environment work for the past 5+ years has been Gym-com

Gymnasium is now maintained by the Farama Fpundation, an open-source consortium, not OpenAI. But most RL environment work for the past 5+ years has been Gym-compliant. The TextWord example in the repo, for example, instantiates a Gym-style environment but it doesn’t import from Gymnasium (uses textworld.gym instead).