Rio de Janeiro's "homegrown" LLM appears to be a merge of an existing model

Re:Rio de Janeiro's "homegrown" LLM appears to be a merge of... by Aurornis on Sunday June 14, 2026 @07:43PM (#48534373)

> 2. The improvement would come from merging the weights PLUS on-policy distillation. The confusion is that the uploaded model didn't have the distillation at all.

They merged the base model with another lab’s fine tuned model. The improvements could have come from getting some of the fine tuned weights from the other model.

If they really had a better performing model that they “accidentally” forgot to upload, they could have uploaded the correct file by now.

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Re:Rio de Janeiro's "homegrown" LLM appears to be a merge of... by croes on Monday June 15, 2026 @01:17AM (#48536918)

Seems they did

https://news.ycombinator.com/item?id=48529544

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Re:Rio de Janeiro's "homegrown" LLM appears to be a merge of... by ipieter on Monday June 15, 2026 @01:41AM (#48537032)

I only see an edit to the readme (13h ago) and removal of the weights, so the repo is now empty.

I am willing to give them the benefit of the doubt, but we've seen this before: a model gets released that is supposedly state-of-the-art, yet seems to be a an other repackaged model without any training. Reflection 70B was the most similar example, all they now need is an api that rewrites "Claude" to "Rio".

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