Kimi LinearvsNemotron 3 Ultra
Kimi Linear | Nemotron 3 Ultra | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | 48B | 550B |
| BenchmarksPublished by one model only | ||
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 86.7% |
AA Intelligence IndexOverall intelligence — Artificial Analysis composite intelligence index across evals | — | 48 |
| Overview | ||
| Company | Moonshot AI | NVIDIA |
| Release date | Oct 30 2025 | Jun 4 2026 |
| Access | Open Weight | Open Source |
Other comparisons
Kimi LinearvsClaude Opus 5Nemotron 3 UltravsClaude Opus 5Kimi LinearvsGPT-5.6 SolNemotron 3 UltravsGPT-5.6 SolKimi LinearvsGemini 3.7 FlashNemotron 3 UltravsGemini 3.7 FlashKimi LinearvsMuse GlimmerNemotron 3 UltravsMuse GlimmerKimi LinearvsGrok 4.6Nemotron 3 UltravsGrok 4.6Kimi LinearvsDeepSeek-V4-Pro-0813Nemotron 3 UltravsDeepSeek-V4-Pro-0813
Frequently asked questions
Kimi Linear and Nemotron 3 Ultra don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi Linear shipped 217 days before Nemotron 3 Ultra, so benchmark comparisons should account for the intervening progress.
Kimi Linear has 48B parameters, while Nemotron 3 Ultra has 550B. Kimi Linear is open weight, while Nemotron 3 Ultra is open source.
Direct benchmark comparisons are unavailable — Kimi Linear and Nemotron 3 Ultra don't publish scores on any of the same benchmarks.
Kimi Linear was released by Moonshot AI on Oct 30 2025.
Nemotron 3 Ultra was released by NVIDIA on Jun 4 2026.
Kimi Linear is an open weight model released by Moonshot AI. Nemotron 3 Ultra is an open source model released by NVIDIA.