ResearchBenchmarksSTRING on AB-OSFollow61.4LLM Judge AccuracyGSPO34.8841.76548.6555.535May 8, 2026Evaluation ResultsMethodMethodLinksLLM Judge AccuracyGSPO2026.0561.4A3Harness Context=σ-RevealHarness Context=σ-Reveal2026.0560.7A3Harness Context=VanillaHarness Context=Vanilla2026.0558.6ReACT2026.0557.9GiGPO2026.0554.5RetroAgent2026.0549HGPO2026.0546.9LATS2026.0540rStar2026.0535.9