Nemotron 3 Ultra (free)
🧠 AI Modelnvidia
Free, open frontier-reasoning MoE with 1M context.
Nemotron 3 Ultra is an open-source model developed by NVIDIA, featuring a hybrid Transformer-Mamba mixture-of-experts architecture. With 550B total parameters and only 55B activated per token, it balances performance and efficiency. It supports a 1 million token context, reasoning, tool calling, and other advanced features via its inference API. Despite being free, it achieves strong benchmark results, such as an ELO of 1224 on gamedev and 1136 on website tasks. Available through OpenRouter, it democratizes access to cutting-edge AI capabilities.
💡Highlights
- ├─550B MoE, 55B active per token
- ├─1M context length
- └─Hybrid Transformer-Mamba architecture
🎯For
- ├─AI researchers
- ├─Developers
- └─Open-source enthusiasts