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It beats GPT 3.5 in some benchmarks, the first open model to do so I believe.

Versions being worked on now will do much better.

GPT 4 is far better and will likely not be beaten by any current open models and approaches but maybe an ensemble of them.

Allegedly, GPT4 itself is an ensemble of models anyway, right?

The architecture is something like an ensemble but there is also this control network which chooses 2 experts to generate text.