Model comparison · text
Kimi-K2-Thinking vs NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16
Symmetrical, primary-source facts with unknown values left visible. No winner is assigned without comparable measurements.
FieldAt a glance
Moonshot AI · activeKimi-K2-ThinkingVerified Aug 28, 2026
NVIDIA · activeNVIDIA-Nemotron-3-Ultra-550B-A55B-BF16Verified Aug 28, 2026
Technical differences
Side-by-side facts
| Field | Kimi-K2-Thinking | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
|---|---|---|
| Developer | Moonshot AI | NVIDIA |
| Family | Kimi K2 Thinking | Nvidia Nemotron 3 Ultra 550b A55b Bf16 |
| Model | Kimi-K2-Thinking | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
| Version | Kimi-K2-Thinking | NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 |
| Lifecycle | active | active |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 262144 | 262144 |
| Total parameters | 1026408240256 | 560524578816 |
| Active parameters | 32000000000 | 55000000000 |
| License | other | other |
| Open weights | Yes | Yes |
| API available | Yes | Unknown |
| Self-hostable | Yes | Yes |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
14 comparable fields · 6 material differences · Pair passes the primary-source comparison gate
Primary benchmark evidence
Comparable performance
No protocol-matched benchmark yet.Results appear here only when both models share the same benchmark version, metric, evaluation protocol, and evidence class.
Kimi-K2-Thinking capabilities
Input price$0.60
Output price$2.50
Serving providers1
Canonical IDmoonshotai/Kimi-K2-Thinking
NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 capabilities
Input price—
Output price—
Serving providers0
Canonical IDnvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16
Internal comparison graph
Related comparisons
Primary evidence