# Nemotron 4 340b Instruct vs o3-pro

> o3-pro is the stronger model overall, scoring 42.9 to 35.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/nemotron-4-340b-instruct-vs-o3-pro
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in long context, where o3-pro leads 72.2 to 37.1.
- Nemotron 4 340b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| Provider | NVIDIA | OpenAI |
| Noometry Index | 35.9 | 42.9 |
| Rank | 223 | 105 |
| Context | — | 200K |
| Input $/M | — | $20 |
| Output $/M | — | $80 |
| Weights | Open | Proprietary |

## Coding

- Nemotron 4 340b Instruct: 35.2 (#228)
- o3-pro: 55.5 (#24)

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| Aider Polyglot | — | 84.9% |
| WeirdML | — | 58.2% |
| LMArena Coding | 1209 | — |

## Reasoning

- Nemotron 4 340b Instruct: 23.4 (#178)
- o3-pro: 23.8 (#171)

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| ARC-AGI-2 | — | 4.9% |
| Kagi LLM Benchmark | — | 72.1% |
| ARC-AGI-1 | — | 59.3% |
| LMArena Hard Prompts | 1202 | — |
| DTBench | — | 86.9% |
| LMCA | — | 38.5% |
| Epoch Capabilities Index | — | 147.42 |

## Math

- Nemotron 4 340b Instruct: 34.3 (#195)
- o3-pro: —

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| LMArena Math | 1216 | — |

## Knowledge

- Nemotron 4 340b Instruct: 32.0 (#216)
- o3-pro: 29.5 (#238)

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 23.3% |
| LMArena Expert | 1171 | — |

## Multilingual

- Nemotron 4 340b Instruct: 37.9 (#233)
- o3-pro: —

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| LMArena Non-English | 1206 | — |
| LMArena Chinese | 1214 | — |
| LMArena French | 1197 | — |
| LMArena German | 1192 | — |
| LMArena Japanese | 1128 | — |
| LMArena Korean | 1148 | — |
| LMArena Russian | 1219 | — |
| LMArena Spanish | 1195 | — |

## Instruction Following

- Nemotron 4 340b Instruct: 63.1 (#232)
- o3-pro: —

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| LMArena Instruction Following | 1203 | — |

## Long Context

- Nemotron 4 340b Instruct: 37.1 (#221)
- o3-pro: 72.2 (#1)

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| Fiction.LiveBench | — | 97.2% |
| LMArena Longer Query | 1225 | — |

## Writing & Preference

- Nemotron 4 340b Instruct: 42.7 (#233)
- o3-pro: 57.1 (#133)

| Benchmark | Nemotron 4 340b Instruct | o3-pro |
|---|---|---|
| LMArena Text | 1225 | — |
| LMArena Creative Writing | 1203 | — |
| Short-Story Creative Writing | — | 84.4% |
| LMArena Multi-Turn | 1214 | — |

## FAQ

### Is Nemotron 4 340b Instruct better than o3-pro?

o3-pro is the stronger model overall, scoring 42.9 to 35.9 on the Noometry Index.

### Is Nemotron 4 340b Instruct or o3-pro better for coding?

o3-pro scores higher on coding benchmarks: 55.5 versus 35.2 in the Noometry coding category.

### How many benchmarks do Nemotron 4 340b Instruct and o3-pro share?

0 benchmarks have published results for both models. Nemotron 4 340b Instruct has 17 scored results on Noometry and o3-pro has 12.