Model comparison
Grok-2 (Dec 2024) vs Nemotron 3.5 Lightning
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 33.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. Grok-2 (Dec 2024) scores higher in 1 category and Nemotron 3.5 Lightning in 7 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in math, where Nemotron 3.5 Lightning leads 37.5 to 20.8.
- Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.
Side by side
| Grok-2 (Dec 2024) | Nemotron 3.5 Lightning | |
|---|---|---|
| Provider | xAI | NVIDIA |
| Noometry Index | 33.7 | 40.0 |
| Released | 2024-08-13 | 2026-08-11 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 262K |
| Input $ / M tokens | — | $0.05 |
| Output $ / M tokens | — | $0.20 |
| Results tracked | 34 | 18 |
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Category by category
Coding Nemotron 3.5 Lightning leads
Grok-2 (Dec 2024): 33.3 (#258), Nemotron 3.5 Lightning: 40.4 (#141)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Coding | 1287 | 1375 |
| WeirdML | 22.2% | — |
| LiveBench Coding | 46.4% | — |
Reasoning Nemotron 3.5 Lightning leads
Grok-2 (Dec 2024): 16.9 (#299), Nemotron 3.5 Lightning: 26.8 (#127)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Hard Prompts | 1272 | 1337 |
| SimpleBench | 22.7% | — |
| LiveBench Reasoning | 54.8% | — |
| DTBench | 65.2% | — |
| LiveBench Data Analysis | 54.5% | — |
| Epoch Capabilities Index | 130.48 | — |
| LiveBench | 54.3% | — |
Math Nemotron 3.5 Lightning leads
Grok-2 (Dec 2024): 20.8 (#284), Nemotron 3.5 Lightning: 37.5 (#155)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Math | 1283 | 1359 |
| OTIS Mock AIME 2024-2025 | 11.5% | — |
| LiveBench Math | 54.9% | — |
| MATH Level 5 | 63.5% | — |
| FrontierMath (Feb 2025 set) | 0.7% | — |
Knowledge Nemotron 3.5 Lightning leads
Grok-2 (Dec 2024): 29.8 (#233), Nemotron 3.5 Lightning: 37.5 (#154)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Expert | 1254 | 1356 |
| GPQA Diamond | 53.8% | — |
| Confabulations | 20.1% | — |
Multilingual Too close to call
Grok-2 (Dec 2024): 43.1 (#188), Nemotron 3.5 Lightning: 44.0 (#180)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Non-English | 1282 | 1295 |
| LMArena Chinese | 1289 | 1359 |
| LMArena French | 1318 | 1366 |
| LMArena German | 1287 | 1282 |
| LMArena Japanese | 1244 | 1206 |
| LMArena Korean | 1237 | 1238 |
| LMArena Russian | 1286 | 1253 |
| LMArena Spanish | 1281 | 1345 |
Instruction Following Nemotron 3.5 Lightning leads
Grok-2 (Dec 2024): 66.9 (#202), Nemotron 3.5 Lightning: 69.6 (#170)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Instruction Following | 1270 | 1318 |
| LiveBench Instruction Following | 69.6% | — |
Long Context Nemotron 3.5 Lightning leads
Grok-2 (Dec 2024): 38.8 (#190), Nemotron 3.5 Lightning: 39.9 (#165)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Longer Query | 1276 | 1314 |
Writing & Preference Too close to call
Grok-2 (Dec 2024): 48.6 (#198), Nemotron 3.5 Lightning: 48.5 (#201)
| Benchmark | Grok-2 (Dec 2024) | Nemotron 3.5 Lightning |
|---|---|---|
| LMArena Text | 1305 | 1327 |
| LMArena Creative Writing | 1284 | 1254 |
| LMArena Multi-Turn | 1290 | 1328 |
| Short-Story Creative Writing | 63.6% | — |
| EQ-Bench Creative Writing | — | 1280 |
| LiveBench Language | 45.6% | — |
Frequently asked questions
Is Grok-2 (Dec 2024) better than Nemotron 3.5 Lightning?
Nemotron 3.5 Lightning is the stronger model overall, scoring 40.0 to 33.7 on the Noometry Index.
Is Grok-2 (Dec 2024) or Nemotron 3.5 Lightning better for coding?
Nemotron 3.5 Lightning scores higher on coding benchmarks: 40.4 versus 33.3 in the Noometry coding category.
How many benchmarks do Grok-2 (Dec 2024) and Nemotron 3.5 Lightning share?
17 benchmarks have published results for both models. Grok-2 (Dec 2024) has 34 scored results on Noometry and Nemotron 3.5 Lightning has 18.