ResearchBenchmarksSafe Reinforcement Learning on Safety Gymnasium Hopper (C=25)Follow1,691.92ReturnCSPO125.7424532.3462938.951,345.5538Jun 12, 2026Evaluation ResultsMethodMethodLinksReturnCostCSPO2026.061,691.927.1CUP2026.061,661.620.5CPO2026.061,639.2228.1FOCOPS2026.061,613.6419.6C-TRPO2026.061,597.4823.2CPPOPID2026.061,579.1921.4EPO2026.061,340.4912.1P3O2026.061,255.3424.4APPO2026.061,229.8623.6PCPO2026.061,112.5522.5PPO-Lag2026.06607.222.59IPO2026.06185.9827.1