update paper link

openai · Mar 17, 2020 · 04d2005 · 04d2005
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 # Procgen Benchmark
 
-#### [[Blog Post]](https://openai.com/blog/procgen-benchmark/) [[Paper]](https://cdn.openai.com/procgen.pdf)
+#### [[Blog Post]](https://openai.com/blog/procgen-benchmark/) [[Paper]](https://arxiv.org/abs/1912.01588)
 
 16 simple-to-use procedurally-generated [gym](https://github.com/openai/gym) environments which provide a direct measure of how quickly a reinforcement learning agent learns generalizable skills.  The environments run at high speed (thousands of steps per second) on a single core.