Rio de Janeiro's "Homegrown" LLM Allegedly Exposed as a Weighted Merge

“Rio bragged about a homegrown AI model. The plot twist: it may be two open models duct-taped together in a flag costume.”

8.8Weirdness

Why It Matters

Sovereign AI theater: governments claiming original AI achievement while the artifact may be a rebranded merge of open models.

Evidence

nex-agi/Nex-N2 GitHub issue, Hacker News, Digg/social amplification, NVIDIA forum discussion. Nex claims prefeitura-rio/Rio-3.5-Open-397B is approximately a 60/40 element-wise merge of Nex-N2 Pro and Qwen3.5-397B-A17B, with no evidence of independent training.

Caveat

Phrase as an allegation/technical claim unless Rio formally concedes; link the GitHub proof.

Signal Read

Needs scoring pass

Source Trail

Daily scan: 2026-06-15

  • No public source URL captured yet.