Model comparison
Kimi K2 (Jul 2025) vs Nemotron 3 Super
Kimi K2 (Jul 2025) is the stronger model overall, scoring 41.2 to 40.1 on the Noometry Index. Nemotron 3 Super costs 5.8× less per token, which makes it the better buy when Kimi K2 (Jul 2025)'s lead doesn't matter for your workload.
Last verified . 17 shared benchmarks.
NVIDIASummary
- They share 17 benchmarks with published results for both. Kimi K2 (Jul 2025) scores higher in 5 categories and Nemotron 3 Super in 3 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Kimi K2 (Jul 2025) leads 62.3 to 55.9.
- Nemotron 3 Super is cheaper at $0.08 / $0.45 per million input/output tokens, against $0.57 / $2.30 for Kimi K2 (Jul 2025).
Side by side
| Kimi K2 (Jul 2025) | Nemotron 3 Super | |
|---|---|---|
| Provider | Moonshot AI | NVIDIA |
| Noometry Index | 41.2 | 40.1 |
| Released | 2025-07-12 | 2026-03-11 |
| Weights | Open | Open |
| Context window | 262K | 262K |
| Max output | 262K | 131K |
| Input $ / M tokens | $0.57 | $0.08 |
| Output $ / M tokens | $2.30 | $0.45 |
| Results tracked | 42 | 21 |
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Category by category
Coding Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 42.4 (#102), Nemotron 3 Super: 39.4 (#158)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| WeirdML | 42.8% | 38% |
| LMArena Coding | 1399 | 1403 |
| ALE-Bench | 597.5 | 213.9 |
| SWE-bench Verified (bash only) | 63.4% | — |
| Aider Polyglot | 59.1% | — |
| SciCode | — | 36% |
| GSO | 4.9% | — |
Agentic & Tool Use Not comparable
Kimi K2 (Jul 2025): 32.4 (#64), Nemotron 3 Super: —
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| Terminal-Bench | 35.7% | — |
| Berkeley Function Calling Leaderboard | 59.1% | — |
| METR Time Horizons | 59.2% | — |
Reasoning Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 23.3 (#179), Nemotron 3 Super: 18.7 (#276)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Hard Prompts | 1384 | 1386 |
| SimpleBench | 26.3% | — |
| Kagi LLM Benchmark | 64.4% | — |
| NYT Connections (extended) | — | 15.4% |
| CritPt | — | 3.1% |
| Epoch Capabilities Index | 146.01 | — |
| ForecastBench | 60.2 | — |
Math Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 42.7 (#83), Nemotron 3 Super: 39.6 (#101)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Math | 1397 | 1380 |
| MathArena Final-Answer Competitions | — | 60.4% |
| Omni-MATH | 65.4% | — |
| FrontierMath (Feb 2025 set) | 21.4% | — |
| FrontierMath Tier 4 (v1) | 0% | — |
Knowledge Nemotron 3 Super leads
Kimi K2 (Jul 2025): 37.3 (#157), Nemotron 3 Super: 38.9 (#139)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Expert | 1365 | 1398 |
| MMLU-Pro | 81.9% | — |
| Confabulations | 20.4% | — |
| Vectara Hallucination Rate | 17.9% | — |
| GPQA (HELM) | 65.3% | — |
Multilingual Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 49.6 (#130), Nemotron 3 Super: 48.4 (#144)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Non-English | 1372 | 1355 |
| LMArena Chinese | 1415 | 1432 |
| LMArena French | 1379 | 1405 |
| LMArena German | 1387 | 1341 |
| LMArena Russian | 1385 | 1336 |
| LMArena Spanish | 1386 | 1417 |
| LMArena Japanese | 1349 | — |
| LMArena Korean | 1325 | — |
Instruction Following Too close to call
Kimi K2 (Jul 2025): 71.1 (#156), Nemotron 3 Super: 71.2 (#154)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Instruction Following | 1348 | 1347 |
| IFEval | 85% | — |
Long Context Too close to call
Kimi K2 (Jul 2025): 41.2 (#145), Nemotron 3 Super: 41.5 (#139)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Longer Query | 1353 | 1362 |
| Fiction.LiveBench | 66.7% | — |
| CL-bench | 17.6% | — |
Writing & Preference Kimi K2 (Jul 2025) leads
Kimi K2 (Jul 2025): 62.3 (#78), Nemotron 3 Super: 55.9 (#140)
| Benchmark | Kimi K2 (Jul 2025) | Nemotron 3 Super |
|---|---|---|
| LMArena Text | 1380 | 1378 |
| LMArena Creative Writing | 1350 | 1317 |
| LMArena Multi-Turn | 1371 | 1369 |
| Short-Story Creative Writing | 85.6% | — |
| EQ-Bench Creative Writing | 1666 | — |
| WildBench | 86.2% | — |
Frequently asked questions
Is Kimi K2 (Jul 2025) better than Nemotron 3 Super?
Kimi K2 (Jul 2025) is the stronger model overall, scoring 41.2 to 40.1 on the Noometry Index. Nemotron 3 Super costs 5.8× less per token, which makes it the better buy when Kimi K2 (Jul 2025)'s lead doesn't matter for your workload.
Which is cheaper, Kimi K2 (Jul 2025) or Nemotron 3 Super?
Nemotron 3 Super is cheaper. It lists at $0.08 per million input tokens and $0.45 per million output tokens; Kimi K2 (Jul 2025) lists at $0.57 and $2.30.
Is Kimi K2 (Jul 2025) or Nemotron 3 Super better for coding?
Kimi K2 (Jul 2025) scores higher on coding benchmarks: 42.4 versus 39.4 in the Noometry coding category.
Which has the bigger context window?
Both accept 262K tokens.
How many benchmarks do Kimi K2 (Jul 2025) and Nemotron 3 Super share?
17 benchmarks have published results for both models. Kimi K2 (Jul 2025) has 42 scored results on Noometry and Nemotron 3 Super has 21.