Model comparison
Nemotron 4 340b Instruct vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 35.9 on the Noometry Index.
Last verified . 17 shared benchmarks.
NVIDIA
StepFunSummary
- They share 17 benchmarks with published results for both. Nemotron 4 340b Instruct scores higher in 1 category and Step 3.5 Flash in 7 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 3.5 Flash leads 58.8 to 42.7.
Side by side
| Nemotron 4 340b Instruct | Step 3.5 Flash | |
|---|---|---|
| Provider | NVIDIA | StepFun |
| Noometry Index | 35.9 | 42.3 |
| Released | 2024-06-14 | 2026-01-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 17 | 19 |
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Category by category
Coding Step 3.5 Flash leads
Nemotron 4 340b Instruct: 35.2 (#228), Step 3.5 Flash: 42.4 (#105)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1209 | 1436 |
Reasoning Nemotron 4 340b Instruct leads
Nemotron 4 340b Instruct: 23.4 (#178), Step 3.5 Flash: 22.2 (#202)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1202 | 1411 |
| NYT Connections (extended) | — | 28.4% |
Math Step 3.5 Flash leads
Nemotron 4 340b Instruct: 34.3 (#195), Step 3.5 Flash: 42.6 (#84)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1216 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
Knowledge Step 3.5 Flash leads
Nemotron 4 340b Instruct: 32.0 (#216), Step 3.5 Flash: 39.6 (#132)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1171 | 1421 |
Multilingual Step 3.5 Flash leads
Nemotron 4 340b Instruct: 37.9 (#233), Step 3.5 Flash: 50.5 (#119)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1206 | 1385 |
| LMArena Chinese | 1214 | 1447 |
| LMArena French | 1197 | 1421 |
| LMArena German | 1192 | 1405 |
| LMArena Japanese | 1128 | 1354 |
| LMArena Korean | 1148 | 1352 |
| LMArena Russian | 1219 | 1385 |
| LMArena Spanish | 1195 | 1419 |
Instruction Following Step 3.5 Flash leads
Nemotron 4 340b Instruct: 63.1 (#232), Step 3.5 Flash: 73.1 (#124)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1203 | 1385 |
Long Context Step 3.5 Flash leads
Nemotron 4 340b Instruct: 37.1 (#221), Step 3.5 Flash: 42.8 (#117)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1225 | 1402 |
Writing & Preference Step 3.5 Flash leads
Nemotron 4 340b Instruct: 42.7 (#233), Step 3.5 Flash: 58.8 (#113)
| Benchmark | Nemotron 4 340b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1225 | 1403 |
| LMArena Creative Writing | 1203 | 1357 |
| LMArena Multi-Turn | 1214 | 1405 |
Frequently asked questions
Is Nemotron 4 340b Instruct better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 35.9 on the Noometry Index.
Is Nemotron 4 340b Instruct or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 35.2 in the Noometry coding category.
How many benchmarks do Nemotron 4 340b Instruct and Step 3.5 Flash share?
17 benchmarks have published results for both models. Nemotron 4 340b Instruct has 17 scored results on Noometry and Step 3.5 Flash has 19.