Model comparison
GPT-5.3 Chat vs Nemotron 4 340b Instruct
GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 35.9 on the Noometry Index.
Last verified . 17 shared benchmarks.
NVIDIASummary
- They share 17 benchmarks with published results for both. GPT-5.3 Chat scores higher in 8 categories and Nemotron 4 340b Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GPT-5.3 Chat leads 63.1 to 42.7.
- Nemotron 4 340b Instruct has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Chat | Nemotron 4 340b Instruct | |
|---|---|---|
| Provider | OpenAI | NVIDIA |
| Noometry Index | 42.8 | 35.9 |
| Released | 2026-03-03 | 2024-06-14 |
| Weights | Proprietary | Open |
| Context window | 128K | — |
| Max output | 16K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 18 | 17 |
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Category by category
Coding GPT-5.3 Chat leads
GPT-5.3 Chat: 41.4 (#124), Nemotron 4 340b Instruct: 35.2 (#228)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Coding | 1408 | 1209 |
Reasoning GPT-5.3 Chat leads
GPT-5.3 Chat: 28.5 (#102), Nemotron 4 340b Instruct: 23.4 (#178)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1399 | 1202 |
Math GPT-5.3 Chat leads
GPT-5.3 Chat: 38.2 (#142), Nemotron 4 340b Instruct: 34.3 (#195)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Math | 1389 | 1216 |
Knowledge GPT-5.3 Chat leads
GPT-5.3 Chat: 38.8 (#140), Nemotron 4 340b Instruct: 32.0 (#216)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Expert | 1397 | 1171 |
Multilingual GPT-5.3 Chat leads
GPT-5.3 Chat: 50.3 (#124), Nemotron 4 340b Instruct: 37.9 (#233)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Non-English | 1382 | 1206 |
| LMArena Chinese | 1432 | 1214 |
| LMArena French | 1397 | 1197 |
| LMArena German | 1384 | 1192 |
| LMArena Japanese | 1352 | 1128 |
| LMArena Korean | 1346 | 1148 |
| LMArena Russian | 1400 | 1219 |
| LMArena Spanish | 1371 | 1195 |
Instruction Following GPT-5.3 Chat leads
GPT-5.3 Chat: 72.8 (#129), Nemotron 4 340b Instruct: 63.1 (#232)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Instruction Following | 1378 | 1203 |
Long Context GPT-5.3 Chat leads
GPT-5.3 Chat: 42.6 (#120), Nemotron 4 340b Instruct: 37.1 (#221)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Longer Query | 1396 | 1225 |
Writing & Preference GPT-5.3 Chat leads
GPT-5.3 Chat: 63.1 (#68), Nemotron 4 340b Instruct: 42.7 (#233)
| Benchmark | GPT-5.3 Chat | Nemotron 4 340b Instruct |
|---|---|---|
| LMArena Text | 1389 | 1225 |
| LMArena Creative Writing | 1355 | 1203 |
| LMArena Multi-Turn | 1412 | 1214 |
| EQ-Bench Creative Writing | 1690 | — |
Frequently asked questions
Is GPT-5.3 Chat better than Nemotron 4 340b Instruct?
GPT-5.3 Chat is the stronger model overall, scoring 42.8 to 35.9 on the Noometry Index.
Is GPT-5.3 Chat or Nemotron 4 340b Instruct better for coding?
GPT-5.3 Chat scores higher on coding benchmarks: 41.4 versus 35.2 in the Noometry coding category.
How many benchmarks do GPT-5.3 Chat and Nemotron 4 340b Instruct share?
17 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Nemotron 4 340b Instruct has 17.