prefeitura-rio/Rio-3.0-Open-Mini
🧠 AI Modelprefeitura-rio
Open-source bilingual (PT/EN) conversational model based on Qwen3-4B.
Rio-3.0-Open-Mini is an open-source text-generation model fine-tuned from Qwen/Qwen3-4B-Thinking-2507 by the prefeitura-rio team (city hall of Rio de Janeiro). It retains the original 4B parameter architecture with thinking capabilities, but is specifically optimized for bilingual (Portuguese and English) conversational use. The model uses safetensors format via the Transformers library, making it compatible with standard inference pipelines. Key innovations include targeted fine-tuning on municipal and general dialogue datasets, enabling natural interaction across various domains. Despite its compact size, it delivers efficient performance for deployment in resource-constrained environments. The model is free to use for both research and commercial applications under its open-source license.
💡Highlights
- ├─1.4M+ downloads on HuggingFace
- ├─Based on Qwen3-4B-Thinking
- └─Bilingual PT/EN conversational fine-tune
🎯For
- ├─Portuguese-speaking developers
- ├─conversational AI researchers
- └─city government technology teams