Model comparison
Amazon Nova Experimental Chat 10 20 vs Step 3.7 Flash
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 37.3 on the Noometry Index.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in reasoning, where Amazon Nova Experimental Chat 10 20 leads 28.4 to 21.6.
- Step 3.7 Flash has downloadable open weights; the other is API-only.
Side by side
| Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash | |
|---|---|---|
| Provider | Amazon | StepFun |
| Noometry Index | 42.1 | 37.3 |
| Released | — | 2026-05-29 |
| Weights | Proprietary | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.18 |
| Output $ / M tokens | — | $1.11 |
| Results tracked | 17 | 5 |
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Category by category
Coding Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 41.6 (#123), Step 3.7 Flash: 40.0 (#150)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| SciCode | — | 40% |
| LMArena Coding | 1412 | — |
| ALE-Bench | — | 694.12 |
Reasoning Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 28.4 (#106), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | — | 39.7% |
| CritPt | — | 2.3% |
| LMArena Hard Prompts | 1396 | — |
Math Step 3.7 Flash leads
Amazon Nova Experimental Chat 10 20: 39.0 (#119), Step 3.7 Flash: 42.9 (#82)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
| LMArena Math | 1425 | — |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 20: 38.5 (#144), Step 3.7 Flash: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| LMArena Expert | 1386 | — |
Multilingual Not comparable
Amazon Nova Experimental Chat 10 20: 49.5 (#131), Step 3.7 Flash: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| LMArena Non-English | 1372 | — |
| LMArena Chinese | 1404 | — |
| LMArena French | 1425 | — |
| LMArena German | 1391 | — |
| LMArena Japanese | 1360 | — |
| LMArena Korean | 1324 | — |
| LMArena Russian | 1371 | — |
| LMArena Spanish | 1382 | — |
Instruction Following Not comparable
Amazon Nova Experimental Chat 10 20: 72.1 (#141), Step 3.7 Flash: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| LMArena Instruction Following | 1365 | — |
Long Context Not comparable
Amazon Nova Experimental Chat 10 20: 41.7 (#133), Step 3.7 Flash: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| LMArena Longer Query | 1370 | — |
Writing & Preference Not comparable
Amazon Nova Experimental Chat 10 20: 56.6 (#136), Step 3.7 Flash: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Step 3.7 Flash |
|---|---|---|
| LMArena Text | 1394 | — |
| LMArena Creative Writing | 1318 | — |
| LMArena Multi-Turn | 1364 | — |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Step 3.7 Flash?
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 37.3 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Step 3.7 Flash better for coding?
Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 40.0 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Step 3.7 Flash share?
0 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Step 3.7 Flash has 5.