Model comparison
Amazon Nova Experimental Chat 26 02 10 vs Step 5 Preview
Amazon Nova Experimental Chat 26 02 10 and Step 5 Preview score almost the same on the Noometry Index (43.8 vs 43.8), so choose on price, context window or the category you care about most.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in reasoning, where Step 5 Preview leads 38.0 to 28.9.
Side by side
| Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview | |
|---|---|---|
| Provider | Amazon | StepFun |
| Noometry Index | 43.8 | 43.8 |
| Released | — | 2026-09-16 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 12 | 3 |
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Category by category
Coding Step 5 Preview leads
Amazon Nova Experimental Chat 26 02 10: 43.2 (#81), Step 5 Preview: 50.6 (#40)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1483 | — |
Reasoning Step 5 Preview leads
Amazon Nova Experimental Chat 26 02 10: 28.9 (#84), Step 5 Preview: 38.0 (#58)
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1458 | — |
Math Not comparable
Amazon Nova Experimental Chat 26 02 10: 36.6 (#108), Step 5 Preview: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena Math | 1440 | — |
Knowledge Not comparable
Amazon Nova Experimental Chat 26 02 10: 41.6 (#98), Step 5 Preview: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1505 | — |
Multilingual Not comparable
Amazon Nova Experimental Chat 26 02 10: 54.3 (#48), Step 5 Preview: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1435 | — |
| LMArena Chinese | 1465 | — |
| LMArena Russian | 1423 | — |
Instruction Following Not comparable
Amazon Nova Experimental Chat 26 02 10: 75.3 (#66), Step 5 Preview: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1426 | — |
Long Context Not comparable
Amazon Nova Experimental Chat 26 02 10: 44.0 (#73), Step 5 Preview: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1441 | — |
Writing & Preference Not comparable
Amazon Nova Experimental Chat 26 02 10: 62.0 (#80), Step 5 Preview: —
| Benchmark | Amazon Nova Experimental Chat 26 02 10 | Step 5 Preview |
|---|---|---|
| LMArena Text | 1449 | — |
| LMArena Creative Writing | 1369 | — |
| LMArena Multi-Turn | 1442 | — |
Frequently asked questions
Is Amazon Nova Experimental Chat 26 02 10 better than Step 5 Preview?
Amazon Nova Experimental Chat 26 02 10 and Step 5 Preview score almost the same on the Noometry Index (43.8 vs 43.8), so choose on price, context window or the category you care about most.
Is Amazon Nova Experimental Chat 26 02 10 or Step 5 Preview better for coding?
Step 5 Preview scores higher on coding benchmarks: 50.6 versus 43.2 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 26 02 10 and Step 5 Preview share?
0 benchmarks have published results for both models. Amazon Nova Experimental Chat 26 02 10 has 12 scored results on Noometry and Step 5 Preview has 3.