Model comparison
Amazon Nova Experimental Chat 12 10 vs Mercury 2
Amazon Nova Experimental Chat 12 10 is the stronger model overall, scoring 42.3 to 38.8 on the Noometry Index.
Last verified . 11 shared benchmarks.
Summary
- They share 11 benchmarks with published results for both. Amazon Nova Experimental Chat 12 10 scores higher in 7 categories and Mercury 2 in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in coding, where Amazon Nova Experimental Chat 12 10 leads 41.5 to 33.2.
Side by side
| Amazon Nova Experimental Chat 12 10 | Mercury 2 | |
|---|---|---|
| Provider | Amazon | Inception |
| Noometry Index | 42.3 | 38.8 |
| Released | — | 2026-02-20 |
| Weights | Proprietary | Proprietary |
| Context window | — | 128K |
| Max output | — | 50K |
| Input $ / M tokens | — | $0.25 |
| Output $ / M tokens | — | $0.75 |
| Results tracked | 12 | 17 |
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Category by category
Coding Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 41.5 (#112), Mercury 2: 33.2 (#250)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Coding | 1430 | 1391 |
| LMArena WebDev | — | 1170 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |
Reasoning Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 28.1 (#93), Mercury 2: 23.0 (#170)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1427 | 1362 |
| CritPt | — | 0.8% |
Math Not comparable
Amazon Nova Experimental Chat 12 10: 36.1 (#130), Mercury 2: —
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Math | 1418 | — |
Knowledge Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 38.6 (#133), Mercury 2: 35.6 (#170)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Expert | 1409 | 1358 |
| Vectara Hallucination Rate | — | 12.3% |
Multilingual Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 51.7 (#103), Mercury 2: 46.8 (#153)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1399 | 1331 |
| LMArena Chinese | 1440 | 1416 |
| LMArena Russian | 1397 | 1303 |
Instruction Following Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 73.4 (#117), Mercury 2: 70.4 (#161)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1387 | 1328 |
Long Context Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 42.4 (#120), Mercury 2: 40.4 (#149)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1391 | 1329 |
Writing & Preference Amazon Nova Experimental Chat 12 10 leads
Amazon Nova Experimental Chat 12 10: 59.7 (#104), Mercury 2: 54.0 (#151)
| Benchmark | Amazon Nova Experimental Chat 12 10 | Mercury 2 |
|---|---|---|
| LMArena Text | 1420 | 1355 |
| LMArena Creative Writing | 1351 | 1289 |
| LMArena Multi-Turn | 1409 | 1358 |
Frequently asked questions
Is Amazon Nova Experimental Chat 12 10 better than Mercury 2?
Amazon Nova Experimental Chat 12 10 is the stronger model overall, scoring 42.3 to 38.8 on the Noometry Index.
Is Amazon Nova Experimental Chat 12 10 or Mercury 2 better for coding?
Amazon Nova Experimental Chat 12 10 scores higher on coding benchmarks: 41.5 versus 33.2 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 12 10 and Mercury 2 share?
11 benchmarks have published results for both models. Amazon Nova Experimental Chat 12 10 has 12 scored results on Noometry and Mercury 2 has 17.