RAGEN ranks 3rd hardest in FrontierCS 2, built on hand-written code
wzenus · x · 2026-10-30
RAGEN — turning multi-turn agent trajectories into training batches — ranks as the 3rd hardest task (FDI 92.9) among FrontierCS 2's 48 tasks. Author wzenus notes the underlying code was written entirely by hand in January 2025, before coding agents took off, marveling at how fast the field moves.
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