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Machine Translation on FLORES-200 Spanish-Czech (devtest)

55.18chrF++NLLB-200
-1.687213.076427.8442.6036May 15, 2026

Evaluation results

MethodLinks
NLLB-200Size=1.3B, Checkpoint=Baseline2026.0555.18———
NLLB-200Size=600M, Checkpoint=Baseline2026.0552.54———
GRPO for Seq2Seq MTSize=1.3B, Checkpoint=grpo_best2026.051.29720.0040.012
GRPO for Seq2Seq MTSize=600M, Checkpoint=grpo_best2026.050.5100.0010.004