Model comparison
Amazon Nova Experimental Chat 10 20 vs Mercury 2.5
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 33.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in math, where Amazon Nova Experimental Chat 10 20 leads 39.0 to 23.3.
Side by side
| Amazon Nova Experimental Chat 10 20 | Mercury 2.5 | |
|---|---|---|
| Provider | Amazon | Inception |
| Noometry Index | 42.1 | 33.5 |
| Released | — | 2026-09-08 |
| Weights | Proprietary | Proprietary |
| Context window | — | 260K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.04 |
| Output $ / M tokens | — | $0.15 |
| Results tracked | 17 | 4 |
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Category by category
Coding Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 41.6 (#123), Mercury 2.5: 39.5 (#156)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| SciCode | — | 38.5% |
| LMArena Coding | 1412 | — |
| ALE-Bench | — | 301.65 |
Reasoning Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 28.4 (#106), Mercury 2.5: 22.4 (#193)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| CritPt | — | 0% |
| LMArena Hard Prompts | 1396 | — |
Math Amazon Nova Experimental Chat 10 20 leads
Amazon Nova Experimental Chat 10 20: 39.0 (#119), Mercury 2.5: 23.3 (#272)
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |
| LMArena Math | 1425 | — |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 20: 38.5 (#144), Mercury 2.5: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| LMArena Expert | 1386 | — |
Multilingual Not comparable
Amazon Nova Experimental Chat 10 20: 49.5 (#131), Mercury 2.5: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| 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), Mercury 2.5: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| LMArena Instruction Following | 1365 | — |
Long Context Not comparable
Amazon Nova Experimental Chat 10 20: 41.7 (#133), Mercury 2.5: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1370 | — |
Writing & Preference Not comparable
Amazon Nova Experimental Chat 10 20: 56.6 (#136), Mercury 2.5: —
| Benchmark | Amazon Nova Experimental Chat 10 20 | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1394 | — |
| LMArena Creative Writing | 1318 | — |
| LMArena Multi-Turn | 1364 | — |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 20 better than Mercury 2.5?
Amazon Nova Experimental Chat 10 20 is the stronger model overall, scoring 42.1 to 33.5 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 20 or Mercury 2.5 better for coding?
Amazon Nova Experimental Chat 10 20 scores higher on coding benchmarks: 41.6 versus 39.5 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 20 and Mercury 2.5 share?
0 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 20 has 17 scored results on Noometry and Mercury 2.5 has 4.