Model comparison
Grok 4.7 vs Nemotron 3 Ultra
Grok 4.7 is the stronger model overall, scoring 46.6 to 44.7 on the Noometry Index. Nemotron 3 Ultra costs 2.9× less per token, which makes it the better buy when Grok 4.7's lead doesn't matter for your workload.
Last verified . 16 shared benchmarks.
NVIDIASummary
- They share 16 benchmarks with published results for both. Grok 4.7 scores higher in 4 categories and Nemotron 3 Ultra in 4 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in coding, where Grok 4.7 leads 55.0 to 37.7.
- The biggest single-benchmark swing is ProofBench: 34% for Grok 4.7 and 2% for Nemotron 3 Ultra.
- Nemotron 3 Ultra is cheaper at $0.60 / $2.40 per million input/output tokens, against $2 / $6 for Grok 4.7.
- Grok 4.7 accepts more context: 500K tokens versus 262K.
- Nemotron 3 Ultra has downloadable open weights; the other is API-only.
Side by side
| Grok 4.7 | Nemotron 3 Ultra | |
|---|---|---|
| Provider | xAI | NVIDIA |
| Noometry Index | 46.6 | 44.7 |
| Released | 2026-09-21 | 2026-06-04 |
| Weights | Proprietary | Open |
| Context window | 500K | 262K |
| Max output | 500K | 128K |
| Input $ / M tokens | $2 | $0.60 |
| Output $ / M tokens | $6 | $2.40 |
| Results tracked | 21 | 29 |
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Category by category
Coding Grok 4.7 leads
Grok 4.7: 55.0 (#23), Nemotron 3 Ultra: 37.7 (#174)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| SciCode | 57.4% | 40.3% |
| LMArena Coding | 1423 | 1468 |
| FrontierCode | — | 13.6% |
| CursorBench | 46.3% | — |
| LMArena WebDev | 1636 | — |
| FrontierSWE | 29.5% | — |
| WeirdML | — | 43.5% |
Reasoning Grok 4.7 leads
Grok 4.7: 40.1 (#49), Nemotron 3 Ultra: 30.3 (#78)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| CritPt | 17.7% | 3.1% |
| LMArena Hard Prompts | 1409 | 1452 |
| NYT Connections (extended) | 76.8% | — |
| Chess Puzzles | — | 12% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 90.1% |
| LMCA | — | 36.9% |
| Epoch Capabilities Index | — | 146.2 |
Math Grok 4.7 leads
Grok 4.7: 41.1 (#73), Nemotron 3 Ultra: 34.4 (#160)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| ProofBench | 34% | 2% |
| LMArena Math | 1393 | 1456 |
| OTIS Mock AIME 2024-2025 | — | 86.7% |
Knowledge Nemotron 3 Ultra leads
Grok 4.7: 38.7 (#130), Nemotron 3 Ultra: 52.5 (#56)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Expert | 1413 | 1472 |
| GPQA Diamond | — | 85.4% |
Multimodal Not comparable
Grok 4.7: 28.8 (#107), Nemotron 3 Ultra: —
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| Furniture Assembly | 20.8% | — |
Multilingual Nemotron 3 Ultra leads
Grok 4.7: 51.2 (#108), Nemotron 3 Ultra: 53.7 (#61)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Non-English | 1392 | 1427 |
| LMArena Chinese | 1476 | 1498 |
| LMArena Russian | 1396 | 1415 |
| LMArena French | — | 1475 |
| LMArena German | — | 1471 |
| LMArena Korean | — | 1387 |
| LMArena Spanish | — | 1452 |
Instruction Following Too close to call
Grok 4.7: 74.3 (#98), Nemotron 3 Ultra: 74.9 (#84)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Instruction Following | 1406 | 1417 |
Long Context Too close to call
Grok 4.7: 43.2 (#97), Nemotron 3 Ultra: 43.9 (#77)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Longer Query | 1416 | 1437 |
Writing & Preference Grok 4.7 leads
Grok 4.7: 70.1 (#23), Nemotron 3 Ultra: 66.3 (#35)
| Benchmark | Grok 4.7 | Nemotron 3 Ultra |
|---|---|---|
| LMArena Text | 1397 | 1444 |
| LMArena Creative Writing | 1391 | 1392 |
| EQ-Bench Creative Writing | 2007 | 1692 |
| LMArena Multi-Turn | 1389 | 1412 |
Frequently asked questions
Is Grok 4.7 better than Nemotron 3 Ultra?
Grok 4.7 is the stronger model overall, scoring 46.6 to 44.7 on the Noometry Index. Nemotron 3 Ultra costs 2.9× less per token, which makes it the better buy when Grok 4.7's lead doesn't matter for your workload.
Which is cheaper, Grok 4.7 or Nemotron 3 Ultra?
Nemotron 3 Ultra is cheaper. It lists at $0.60 per million input tokens and $2.40 per million output tokens; Grok 4.7 lists at $2 and $6.
Is Grok 4.7 or Nemotron 3 Ultra better for coding?
Grok 4.7 scores higher on coding benchmarks: 55.0 versus 37.7 in the Noometry coding category.
Which has the bigger context window?
Grok 4.7 does, with 500K tokens against 262K.
How many benchmarks do Grok 4.7 and Nemotron 3 Ultra share?
16 benchmarks have published results for both models. Grok 4.7 has 21 scored results on Noometry and Nemotron 3 Ultra has 29.