Rio 3.5 Open 397B
ai model→ stable
Rio 3.5
Rio 3.5 Open 397B, developed by the IT company of Rio de Janeiro's city government, is a 397-billion-parameter open-source model fine-tuned from Qwen, claiming state-of-the-art performance in its class.
1Total Mentions
-0.20Sentiment (Neutral)
+1.2%Velocity (7d)
First seen: Jun 14, 2026Last active: 3h ago
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Mentions × Lab Attention
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Timeline
1- Product LaunchJun 14, 2026
Claimed SOTA open-source status via a single tweet, no benchmarks or technical report released.
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Sentiment History
Positive sentiment
Negative sentiment
Range: -1 to +1
| Week | Avg Sentiment | Mentions |
|---|---|---|
| 2026-W24 | -0.20 | 1 |