Nemotron 3 Ultra 550B A55Bby NVIDIA
2026-06-04
nvidia/nemotron-3-ultra-550b-a55b
Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy
- Context
- 1M
- Input
- $0.5/M
- Output
- $2.5/M
Model catalog
Compare AI models
Filter 2 source-linked models by creator, price, context, modality, and published benchmark coverage.
Ranked by raw score for IFBench - . Versions are kept separate, and incompatible results are never combined.
Grok 4.3by xAI
2026-04-17
xai/grok-4.3
xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk
- Context
- 1M
- Input
- $1.25/M
- Output
- $2.5/M
| Model | Creator | Raw benchmark score | Input types | Context | Input / Output | Released | Compare |
|---|---|---|---|---|---|---|---|
| Nemotron 3 Ultra 550B A55Bnvidia/nemotron-3-ultra-550b-a55b | NVIDIA |
81.7 | 1M | $0.5 / $2.5 | 2026-06-04 | ||
| Grok 4.3xai/grok-4.3 | xAI |
81.0 | 1M | $1.25 / $2.5 | 2026-04-17 |