Model comparison
Llama 3.1 Nemotron 70b Instruct vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 41.7 to 37.0 on the Noometry Index.
Last verified . 12 shared benchmarks.
NVIDIA
StepFunSummary
- They share 12 benchmarks with published results for both. Llama 3.1 Nemotron 70b 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 59.0 to 48.6.
Side by side
| Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash | |
|---|---|---|
| Provider | NVIDIA | StepFun |
| Noometry Index | 37.0 | 41.7 |
| Released | 2024-12-18 | 2026-01-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 14 | 19 |
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Category by category
Coding Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 35.3 (#212), Step 3.5 Flash: 41.7 (#106)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1272 | 1436 |
| BigCodeBench Instruct | 38.7% | — |
| BigCodeBench Complete | 48.2% | — |
Reasoning Llama 3.1 Nemotron 70b Instruct leads
Llama 3.1 Nemotron 70b Instruct: 24.0 (#156), Step 3.5 Flash: 21.2 (#202)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1266 | 1411 |
| NYT Connections (extended) | — | 28.4% |
Math Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 32.9 (#182), Step 3.5 Flash: 40.6 (#77)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1271 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
Knowledge Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 33.5 (#194), Step 3.5 Flash: 39.0 (#127)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1242 | 1422 |
Multilingual Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 40.7 (#212), Step 3.5 Flash: 50.7 (#115)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1245 | 1386 |
| LMArena Chinese | 1263 | 1448 |
| LMArena Russian | 1227 | 1385 |
| LMArena French | — | 1421 |
| LMArena German | — | 1404 |
| LMArena Japanese | — | 1353 |
| LMArena Korean | — | 1350 |
| LMArena Spanish | — | 1419 |
Instruction Following Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 66.2 (#208), Step 3.5 Flash: 73.3 (#119)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1252 | 1385 |
Long Context Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 37.5 (#210), Step 3.5 Flash: 42.8 (#112)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1239 | 1402 |
Writing & Preference Step 3.5 Flash leads
Llama 3.1 Nemotron 70b Instruct: 48.6 (#197), Step 3.5 Flash: 59.0 (#108)
| Benchmark | Llama 3.1 Nemotron 70b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1283 | 1403 |
| LMArena Creative Writing | 1269 | 1357 |
| LMArena Multi-Turn | 1275 | 1405 |
Frequently asked questions
Is Llama 3.1 Nemotron 70b Instruct better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 41.7 to 37.0 on the Noometry Index.
Is Llama 3.1 Nemotron 70b Instruct or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 41.7 versus 35.3 in the Noometry coding category.
How many benchmarks do Llama 3.1 Nemotron 70b Instruct and Step 3.5 Flash share?
12 benchmarks have published results for both models. Llama 3.1 Nemotron 70b Instruct has 14 scored results on Noometry and Step 3.5 Flash has 19.