5-person team open-sources frontier-class Ultramarine 1 Flash for ~$300k
willcb · x · 2026-10-15
- bertgodel's team released Ultramarine 1 Flash, a frontier-class open-source model for knowledge work matching Fable 5's performance at 60x lower cost.
- Post-trained by a team of 5 for $300k all-in; available on API now with weights releasing in two weeks. Will Depooter notes what small, determined teams with great RL taste can now do, trained with the verifiers + renderers stack.
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