Model comparison
Mercury vs Nova 2.0 Pro Preview
Mercury is the stronger model overall, scoring 37.3 to 32.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where Nova 2.0 Pro Preview leads 21.7 to 16.8.
Side by side
| Mercury | Nova 2.0 Pro Preview | |
|---|---|---|
| Provider | Inception | Amazon |
| Noometry Index | 37.3 | 32.8 |
| Released | — | 2025-12-02 |
| Weights | Proprietary | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 9 | 3 |
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Category by category
Coding Nova 2.0 Pro Preview leads
Mercury: 38.1 (#164), Nova 2.0 Pro Preview: 40.2 (#130)
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| SciCode | — | 42.7% |
| LMArena Coding | 1323 | — |
Agentic & Tool Use Not comparable
Mercury: —, Nova 2.0 Pro Preview: 21.9 (#127)
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| GDP.pdf | — | 2% |
Reasoning Nova 2.0 Pro Preview leads
Mercury: 16.8 (#288), Nova 2.0 Pro Preview: 21.7 (#189)
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| Kagi LLM Benchmark | 21.6% | — |
| CritPt | — | 0% |
| LMArena Hard Prompts | 1284 | — |
Multilingual Not comparable
Mercury: 41.7 (#201), Nova 2.0 Pro Preview: —
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Non-English | 1259 | — |
Instruction Following Not comparable
Mercury: 65.3 (#220), Nova 2.0 Pro Preview: —
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Instruction Following | 1238 | — |
Long Context Not comparable
Mercury: 38.3 (#193), Nova 2.0 Pro Preview: —
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Longer Query | 1264 | — |
Writing & Preference Not comparable
Mercury: 46.2 (#216), Nova 2.0 Pro Preview: —
| Benchmark | Mercury | Nova 2.0 Pro Preview |
|---|---|---|
| LMArena Text | 1282 | — |
| LMArena Creative Writing | 1186 | — |
| LMArena Multi-Turn | 1283 | — |
Frequently asked questions
Is Mercury better than Nova 2.0 Pro Preview?
Mercury is the stronger model overall, scoring 37.3 to 32.8 on the Noometry Index.
Is Mercury or Nova 2.0 Pro Preview better for coding?
Nova 2.0 Pro Preview scores higher on coding benchmarks: 40.2 versus 38.1 in the Noometry coding category.
How many benchmarks do Mercury and Nova 2.0 Pro Preview share?
0 benchmarks have published results for both models. Mercury has 9 scored results on Noometry and Nova 2.0 Pro Preview has 3.