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Kimi K2.6 vs nvidia-nemotron-3-ultra-550b-a55b-nvfp4
Kimi K2.6 is ahead on Arena (1455 vs 1445): in a blind vote people prefer it about 51% of the time.
Kimi K2.61455Arena chat · #44 of 416
nvidia-nemotron-3-ultra-550b-a55b-nvfp41445Arena chat · #64 of 416
Arena scores by category
| Category | Kimi K2.6 | nvidia-nemotron-3-ultra-550b-a55b-nvfp4 | Ahead |
|---|---|---|---|
| Chat | 1455 | 1445 | Kimi K2.6 |
Scores from blind human votes on Arena. A gap under 10 points is too small to call.
Size and where to use them free
| Kimi K2.6 | nvidia-nemotron-3-ultra-550b-a55b-nvfp4 | |
|---|---|---|
| Made by | moonshot | nvidia |
| Size | 1026.9 B (33.3 B active) | 560.5 B (55 B active) |
| 4-bit download | 624 GB | 341 GB |
| Use it free | download and run at home · Modified MIT license | download and run at home · OpenMDW-1.1 license |
Speed at home
| Hardware | Kimi K2.6 | nvidia-nemotron-3-ultra-550b-a55b-nvfp4 |
|---|---|---|
| RTX 3090 | does not fit | does not fit |
| RTX 4090 | does not fit | does not fit |
| RTX 5090 | does not fit | does not fit |
| RX 7900 XTX | does not fit | does not fit |
| Mac M4 Max 128 GB | does not fit | does not fit |
| Ryzen AI Max+ 395 128 GB | does not fit | does not fit |
Estimates at 4-bit with an 8K context, 64 GB of system RAM for offload, calibrated on 44 real llama.cpp tests.
Try them yourself
Ask both the same question side by side in Try & compare, or vote blind between free models in Free Arena.
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- nvidia-nemotron-3-ultra-550b-a55b-nvfp4 vs GLM-5.3-Flash