Nemotron 3 Ultra 550B A55B (Arkanecloud) vs Kimi K2.6
Kimi K2.6 is cheaper on output tokens, while Nemotron 3 Ultra 550B A55B (Arkanecloud) offers a larger context window. Choose Nemotron 3 Ultra 550B A55B (Arkanecloud) or Kimi K2.6 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Nemotron 3 Ultra 550B A55B (Arkanecloud) | Kimi K2.6 |
|---|---|---|
| Provider | Eden AI | MoonshotAI |
| Input / 1M tokens | $0.60 | $0.65 |
| Output / 1M tokens | $3.50 | $3.41 |
| Context window | 512K | 262K |
| Parameters | — | 1T |
| Open weights | Yes | Yes |
| Released | Jun 2026 | Apr 2026 |
| LiveBench score | — | 72.4 |
| LMArena (Chatbot Arena) Elo score | — | 1455 |
| GPQA Diamond score | — | 90.8 |
| FrontierMath score | — | 39.0 |
| LMArena WebDev Elo score | — | 1509 |
| Epoch Capabilities Index score | — | 151 |
| LMArena Vision Elo score | — | 1282 |
FAQ
Is Nemotron 3 Ultra 550B A55B (Arkanecloud) or Kimi K2.6 cheaper?
Kimi K2.6 is cheaper on output tokens ($3.41 vs $3.50 per 1M).
Which has the larger context window, Nemotron 3 Ultra 550B A55B (Arkanecloud) or Kimi K2.6?
Nemotron 3 Ultra 550B A55B (Arkanecloud) has the larger context window (512K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.