Model comparison
Nemotron 3 Ultra vs Sonar
Nemotron 3 Ultra is the stronger model overall, scoring 42.5 to 38.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
NVIDIA
PerplexitySummary
- The widest gap is in writing & preference, where Nemotron 3 Ultra leads 66.3 to 52.6.
- Nemotron 3 Ultra is cheaper at $0.50 / $2.20 per million input/output tokens, against $1 / $1 for Sonar.
- Nemotron 3 Ultra accepts more context: 262K tokens versus 128K.
- Nemotron 3 Ultra has downloadable open weights; the other is API-only.
Side by side
| Nemotron 3 Ultra | Sonar | |
|---|---|---|
| Provider | NVIDIA | Perplexity |
| Noometry Index | 42.5 | 38.5 |
| Released | 2026-06-04 | 2024-01-01 |
| Weights | Open | Proprietary |
| Context window | 262K | 128K |
| Max output | 128K | 4K |
| Input $ / M tokens | $0.50 | $1 |
| Output $ / M tokens | $2.20 | $1 |
| Results tracked | 30 | 7 |
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Category by category
Coding Nemotron 3 Ultra leads
Nemotron 3 Ultra: 38.1 (#182), Sonar: 35.7 (#221)
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| FrontierCode | 13.6% | — |
| SciCode | 40.3% | — |
| WeirdML | 43.5% | — |
| LiveBench Coding | — | 35.1% |
| LMArena Coding | 1468 | — |
Agentic & Tool Use Not comparable
Nemotron 3 Ultra: 23.4 (#126), Sonar: —
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| APEX-Agents | 22.7% | — |
Reasoning Nemotron 3 Ultra leads
Nemotron 3 Ultra: 31.0 (#82), Sonar: 21.1 (#227)
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| CritPt | 3.1% | — |
| Chess Puzzles | 12% | — |
| LiveBench Reasoning | — | 46.3% |
| LMArena Hard Prompts | 1452 | — |
| Mystery Game Puzzles | 20% | — |
| DTBench | 90.1% | — |
| LiveBench Data Analysis | — | 37.9% |
| LMCA | 36.9% | — |
| Epoch Capabilities Index | 146.17 | — |
| LiveBench | — | 46.9% |
Math Nemotron 3 Ultra leads
Nemotron 3 Ultra: 35.3 (#187), Sonar: 33.7 (#200)
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 86.7% | — |
| ProofBench | 2% | — |
| LiveBench Math | — | 41.6% |
| LMArena Math | 1457 | — |
Knowledge Not comparable
Nemotron 3 Ultra: 52.5 (#61), Sonar: —
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| GPQA Diamond | 85.4% | — |
| LMArena Expert | 1472 | — |
Multilingual Not comparable
Nemotron 3 Ultra: 53.5 (#64), Sonar: —
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| LMArena Non-English | 1427 | — |
| LMArena Chinese | 1497 | — |
| LMArena French | 1472 | — |
| LMArena German | 1471 | — |
| LMArena Korean | 1386 | — |
| LMArena Russian | 1417 | — |
| LMArena Spanish | 1454 | — |
Instruction Following Nemotron 3 Ultra leads
Nemotron 3 Ultra: 74.7 (#88), Sonar: 71.4 (#150)
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
| LMArena Instruction Following | 1418 | — |
Long Context Not comparable
Nemotron 3 Ultra: 43.9 (#81), Sonar: —
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| LMArena Longer Query | 1437 | — |
Writing & Preference Nemotron 3 Ultra leads
Nemotron 3 Ultra: 66.3 (#36), Sonar: 52.6 (#167)
| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| LMArena Text | 1445 | — |
| LMArena Creative Writing | 1398 | — |
| EQ-Bench Creative Writing | 1692 | — |
| LMArena Multi-Turn | 1411 | — |
| LiveBench Language | — | 44.1% |
Frequently asked questions
Is Nemotron 3 Ultra better than Sonar?
Nemotron 3 Ultra is the stronger model overall, scoring 42.5 to 38.5 on the Noometry Index.
Which is cheaper, Nemotron 3 Ultra or Sonar?
Nemotron 3 Ultra is cheaper. It lists at $0.50 per million input tokens and $2.20 per million output tokens; Sonar lists at $1 and $1.
Is Nemotron 3 Ultra or Sonar better for coding?
Nemotron 3 Ultra scores higher on coding benchmarks: 38.1 versus 35.7 in the Noometry coding category.
Which has the bigger context window?
Nemotron 3 Ultra does, with 262K tokens against 128K.
How many benchmarks do Nemotron 3 Ultra and Sonar share?
0 benchmarks have published results for both models. Nemotron 3 Ultra has 30 scored results on Noometry and Sonar has 7.