It looks like this system allows easy comparison of reinforcement learning techniques [those techniques can be implemented using any major ML framework].<p>So it isn&#x27;t a competitor to Tensorflow, it sort of allows you to measure techniques built using Tensorflow [or Theano etc]. And the metrics are &quot;how general is this technique?&quot; &quot;how effective is this technique?&quot;<p>Essentially, lots of research says &quot;this technique is effective at this problem,&quot; but there is often no way to compare it to other leading techniques in the field. This playground sort of puts everyone on the same playing field.<p>[and since it&#x27;s open, it seems you can add your own environments. Like if you want to build a Chess AI using reinforcement learning, you can add a chess environment to this playground]