Rio 3.5 Open 397B model sparks ownership dispute

Hugging Face Models

The 397B-parameter MoE model, released by Rio's IT agency IplanRIO, claimed to top Qwen 3.7 but was proven to be a 0.6 Nex / 0.4 Qwen weight merge. IplanRIO updated the model card, credited Nex, and blamed an 'incorrect upload'.

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