I've been working on Swarm since March exclusively with OpenAI's models and I always use their latest releases for the core of development. Swarm allows for the creation of Spaces where agents/humans can collaborate and store persisted data/memory in Decision Graphs. Swarm is model agnostic and supports both local runtimes and cloud hosted agents. You can also connected cross Space agents giving Swarm a network and essentially providing an intelligence substrate for agents.
I wanted to create a unique, new game that's extremely simple (basically just 3 rules) but with thinking complexity like Chess or Go, so here's Kedra; a free strategy game of connection. Place or push stones to connect your edges. Play with a friend online, on one device, or against AI. Built with GPT-6 Astra.