Compare AI models
| 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. | 1T | 9B |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 128k | — |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.57Novita | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $2.30Novita | — |
| Benchmarks | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 10% | 5% |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 75.1% | 64% |
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 65.8% | — |
LiveCodeBenchCompetitive coding — Coding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | — | 71.1% |
| Overview | ||
| Company | Moonshot AI | NVIDIA |
| Release date | Jul 11 2025 | Aug 18 2025 |
| Access | Open Weight | Open Weight |
| Model details | View model | View model |
Other comparisons
Kimi K2vsClaude Haiku 5.5Nemotron Nano 2vsClaude Haiku 5.5Kimi K2vsGPT-6.1 SolNemotron Nano 2vsGPT-6.1 SolKimi K2vsGemini 4 ArgonNemotron Nano 2vsGemini 4 ArgonKimi K2vsMuse Spark 1.3Nemotron Nano 2vsMuse Spark 1.3Kimi K2vsGrok 4.7Nemotron Nano 2vsGrok 4.7Kimi K2vsDeepSeek-V4.1-FlashNemotron Nano 2vsDeepSeek-V4.1-FlashFrequently asked questions
Kimi K2 leads Nemotron Nano 2 on 2 of the 2 benchmarks they both report (BullshitBench v2, GPQA Diamond). Kimi K2 shipped 38 days before Nemotron Nano 2, so benchmark comparisons should account for the intervening progress.
Kimi K2 has 1T parameters, while Nemotron Nano 2 has 9B.
On BullshitBench v2, Kimi K2 leads at 10% vs Nemotron Nano 2 at 5%. On GPQA Diamond, Kimi K2 leads at 75.1% vs Nemotron Nano 2 at 64%.