Tell me something about how Open Assistant works, what I can do to improve it and how can I use it productively
Open Assistant is a chat-based and open-source assistant that aims to give everyone access to a great chat-based large language model. It is a project organized by LAION, a non-profit organization that wants to create truly open AI. Open Assistant uses RLHF (Reinforcement Learning with Human Feedback) to train large language models on conversational tasks.

To improve Open Assistant, you can contribute by providing feedback, data, code, or models. You can find more details on how to contribute on their website or their GitHub repository.

To use Open Assistant productively, you can try out their web interface or their Discord bot. You can also run their models locally on your own hardware if you have a high-end consumer GPU. You can ask Open Assistant to do various tasks such as retrieving information, interacting with third-party systems, generating content, or having a chat.
What is the lowest-end GPU that will be able to run the best and worst models of open assistant. The GPUs should have a release cutoff date by Q2 2020 (They should not be younger than this date).