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The cover of The Gifts of Pai and Vau, a bilingual children's book used for held-out evaluation.

Technical deep diveMar 27, 202617 min read

How We Built a 3B Model That Beats GPT-5.4 at Tuvaluan — And What It Can't Do Yet

A technical deep dive into two-stage training, synthetic data bootstrapping, and why the hardest eval is a children's book.

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We cover the work behind a Tuvaluan assistant people can actually use, from model quality and evaluation to launches and deployment.