Model comparison
Amazon Nova Experimental Chat 10 09 vs Mercury 2
Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 39.1 on the Noometry Index.
Last verified . 9 shared benchmarks.
Summary
- They share 9 benchmarks with published results for both. Amazon Nova Experimental Chat 10 09 scores higher in 5 categories and Mercury 2 in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where Amazon Nova Experimental Chat 10 09 leads 40.2 to 33.5.
Side by side
| Amazon Nova Experimental Chat 10 09 | Mercury 2 | |
|---|---|---|
| Provider | Amazon | Inception |
| Noometry Index | 41.9 | 39.1 |
| 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 | 9 | 17 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 40.2 (#145), Mercury 2: 33.5 (#255)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| LMArena Coding | 1370 | 1391 |
| LMArena WebDev | — | 1171 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |
Reasoning Amazon Nova Experimental Chat 10 09 leads
Amazon Nova Experimental Chat 10 09: 27.3 (#120), Mercury 2: 23.8 (#170)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1356 | 1362 |
| CritPt | — | 0.8% |
Knowledge Not comparable
Amazon Nova Experimental Chat 10 09: —, Mercury 2: 36.2 (#172)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| Vectara Hallucination Rate | — | 12.3% |
| LMArena Expert | — | 1358 |
Multilingual Too close to call
Amazon Nova Experimental Chat 10 09: 47.3 (#150), Mercury 2: 46.6 (#157)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1340 | 1331 |
| LMArena Chinese | 1341 | 1417 |
| LMArena Russian | — | 1304 |
Instruction Following Too close to call
Amazon Nova Experimental Chat 10 09: 69.4 (#172), Mercury 2: 70.2 (#165)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1315 | 1329 |
Long Context Too close to call
Amazon Nova Experimental Chat 10 09: 40.5 (#152), Mercury 2: 40.5 (#154)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1333 | 1330 |
Writing & Preference Too close to call
Amazon Nova Experimental Chat 10 09: 54.7 (#149), Mercury 2: 53.8 (#155)
| Benchmark | Amazon Nova Experimental Chat 10 09 | Mercury 2 |
|---|---|---|
| LMArena Text | 1364 | 1355 |
| LMArena Creative Writing | 1307 | 1289 |
| LMArena Multi-Turn | 1355 | 1358 |
Frequently asked questions
Is Amazon Nova Experimental Chat 10 09 better than Mercury 2?
Amazon Nova Experimental Chat 10 09 is the stronger model overall, scoring 41.9 to 39.1 on the Noometry Index.
Is Amazon Nova Experimental Chat 10 09 or Mercury 2 better for coding?
Amazon Nova Experimental Chat 10 09 scores higher on coding benchmarks: 40.2 versus 33.5 in the Noometry coding category.
How many benchmarks do Amazon Nova Experimental Chat 10 09 and Mercury 2 share?
9 benchmarks have published results for both models. Amazon Nova Experimental Chat 10 09 has 9 scored results on Noometry and Mercury 2 has 17.