# Nemotron 3 Ultra vs Sonar

> Nemotron 3 Ultra is the stronger model overall, scoring 42.5 to 38.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/nemotron-3-ultra-vs-sonar
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- 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.

## Snapshot

| | Nemotron 3 Ultra | Sonar |
|---|---|---|
| Provider | NVIDIA | Perplexity |
| Noometry Index | 42.5 | 38.5 |
| Rank | 113 | 187 |
| Context | 262K | 128K |
| Input $/M | $0.50 | $1 |
| Output $/M | $2.20 | $1 |
| Weights | Open | Proprietary |

## Coding

- 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

- Nemotron 3 Ultra: 23.4 (#126)
- Sonar: —

| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| APEX-Agents | 22.7% | — |

## Reasoning

- 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: 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

- Nemotron 3 Ultra: 52.5 (#61)
- Sonar: —

| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| GPQA Diamond | 85.4% | — |
| LMArena Expert | 1472 | — |

## Multilingual

- 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: 74.7 (#88)
- Sonar: 71.4 (#150)

| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| LiveBench Instruction Following | — | 76.2% |
| LMArena Instruction Following | 1418 | — |

## Long Context

- Nemotron 3 Ultra: 43.9 (#81)
- Sonar: —

| Benchmark | Nemotron 3 Ultra | Sonar |
|---|---|---|
| LMArena Longer Query | 1437 | — |

## Writing & Preference

- 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% |

## FAQ

### 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.