Model comparison
Nova 2.0 Pro Preview vs Step 2 16k Exp 202412
Step 2 16k Exp 202412 is the stronger model overall, scoring 39.2 to 33.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in reasoning, where Step 2 16k Exp 202412 leads 25.9 to 22.4.
Side by side
| Nova 2.0 Pro Preview | Step 2 16k Exp 202412 | |
|---|---|---|
| Provider | Amazon | StepFun |
| Noometry Index | 33.4 | 39.2 |
| Released | 2025-12-02 | — |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 3 | 12 |
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Category by category
Coding Nova 2.0 Pro Preview leads
Nova 2.0 Pro Preview: 40.8 (#133), Step 2 16k Exp 202412: 38.5 (#174)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| SciCode | 42.7% | — |
| LMArena Coding | — | 1316 |
Agentic & Tool Use Not comparable
Nova 2.0 Pro Preview: 21.9 (#136), Step 2 16k Exp 202412: —
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| GDP.pdf | 2% | — |
Reasoning Step 2 16k Exp 202412 leads
Nova 2.0 Pro Preview: 22.4 (#194), Step 2 16k Exp 202412: 25.9 (#142)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| CritPt | 0% | — |
| LMArena Hard Prompts | — | 1299 |
Math Not comparable
Nova 2.0 Pro Preview: —, Step 2 16k Exp 202412: 36.3 (#169)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Math | — | 1304 |
Knowledge Not comparable
Nova 2.0 Pro Preview: —, Step 2 16k Exp 202412: 35.2 (#187)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Expert | — | 1279 |
Multilingual Not comparable
Nova 2.0 Pro Preview: —, Step 2 16k Exp 202412: 43.7 (#181)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Non-English | — | 1290 |
| LMArena Chinese | — | 1331 |
| LMArena Russian | — | 1324 |
Instruction Following Not comparable
Nova 2.0 Pro Preview: —, Step 2 16k Exp 202412: 67.9 (#192)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Instruction Following | — | 1287 |
Long Context Not comparable
Nova 2.0 Pro Preview: —, Step 2 16k Exp 202412: 39.7 (#170)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Longer Query | — | 1307 |
Writing & Preference Not comparable
Nova 2.0 Pro Preview: —, Step 2 16k Exp 202412: 52.3 (#173)
| Benchmark | Nova 2.0 Pro Preview | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Text | — | 1321 |
| LMArena Creative Writing | — | 1328 |
| LMArena Multi-Turn | — | 1292 |
Frequently asked questions
Is Nova 2.0 Pro Preview better than Step 2 16k Exp 202412?
Step 2 16k Exp 202412 is the stronger model overall, scoring 39.2 to 33.4 on the Noometry Index.
Is Nova 2.0 Pro Preview or Step 2 16k Exp 202412 better for coding?
Nova 2.0 Pro Preview scores higher on coding benchmarks: 40.8 versus 38.5 in the Noometry coding category.
How many benchmarks do Nova 2.0 Pro Preview and Step 2 16k Exp 202412 share?
0 benchmarks have published results for both models. Nova 2.0 Pro Preview has 3 scored results on Noometry and Step 2 16k Exp 202412 has 12.