Provider directory
Imported model listings
Explore models discovered from provider APIs. Use the source listing to confirm availability, access and terms.
NVIDIA: Nemotron 3 Ultra (free)
nvidia/nemotron-3-ultra-550b-a55b:free
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
- Reported developer
- nvidia
- Reported license
- UnknownNot independently verified
- Commercial-use rights
- Unknown
- Pricing
- Check provider
Independent check: not performed