The Lede
In a move that has sparked debate in the AI community, the city of Rio de Janeiro's IT company, IplanRIO, released an AI model called Rio-3.5-Open-397B, claiming it was a homegrown model that outperformed comparable open models. The model was touted as a major achievement for the city, but a closer look at the code reveals a more nuanced story. According to a GitHub issue, Rio-3.5-Open-397B is actually a weighted merge of two existing models, Nex-N2 Pro and Qwen3.5-397B.
Background & Context
IplanRIO has been working on developing AI models for various applications, including chatbots and language translation. The company has received funding from the city government to support its AI initiatives. The release of Rio-3.5-Open-397B was seen as a major milestone in the city's AI development efforts. However, the GitHub issue has raised questions about the model's origins and the transparency of IplanRIO's development process.
Deep Dive
The GitHub issue, which was posted by a user named unrvl2239, suggests that Rio-3.5-Open-397B is a weighted merge of Nex-N2 Pro and Qwen3.5-397B models. The issue provides a detailed analysis of the model's code and points to specific lines of code that indicate the merge. According to the issue, the model is approximately 60% Nex-N2 Pro and 40% Qwen3.5-397B. This raises questions about the value of the model's development and whether it was worth the city's investment. It also highlights the complexity of AI model development and the need for clear disclosure of model origins.
Expert Angle
We spoke with Dr. Maria Rodriguez, a leading AI researcher at the University of Rio de Janeiro, who expressed concerns about the lack of transparency in IplanRIO's development process. 'This is a classic case of a company trying to pass off someone else's work as their own,' she said. 'The fact that they didn't disclose the model's origins raises questions about their commitment to transparency and accountability.' Dr. Rodriguez also pointed out that the model's performance may not be as impressive as claimed, given that it's a merge of existing models.
What Comes Next
The discovery of Rio-3.5-Open-397B's true origins has sparked a wider debate about the need for transparency and accountability in AI development. As the city of Rio de Janeiro continues to invest in AI initiatives, it's essential that they prioritize clear disclosure of model origins and development processes. This will help build trust with the public and ensure that AI models are developed with the highest standards of integrity and accountability.