Ember-1, a model built on Kimi K3 through post-training, reportedly reasons 40% more concisely while keeping the same quality and running 40% faster and cheaper. Sebastian Raschka cites it as an example that starting from an existing frontier LLM and investing the budget in post-training is an effective development path.
A little Ember-1 tl;dr.
Seems like a great model!
(Was recently asked on a podcast, given $ xx million, what's the best way to develop a frontier LLM today? My recommendation was: start with an existing one and spend that budget on post-training. Great example here.)
Ember-1 is hot on HN, our research team cooked it’s Kimi K3 post trained to be 40% more concise in reasoning same quality, 40% faster and cheaper
Source: Sebastian Raschka · x.comPublished · added here
