Model comparison
Amazon Nova Micro vs Mercury 2.5
Mercury 2.5 is the stronger model overall, scoring 33.5 to 30.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in coding, where Mercury 2.5 leads 39.5 to 30.5.
- Amazon Nova Micro is cheaper at $0.035 / $0.14 per million input/output tokens, against $0.04 / $0.15 for Mercury 2.5.
- Mercury 2.5 accepts more context: 260K tokens versus 128K.
Side by side
| Amazon Nova Micro | Mercury 2.5 | |
|---|---|---|
| Provider | Amazon | Inception |
| Noometry Index | 30.4 | 33.5 |
| Released | 2024-12-03 | 2026-09-08 |
| Weights | Proprietary | Proprietary |
| Context window | 128K | 260K |
| Max output | 10K | 66K |
| Input $ / M tokens | $0.035 | $0.04 |
| Output $ / M tokens | $0.14 | $0.15 |
| Results tracked | 32 | 4 |
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Category by category
Coding Mercury 2.5 leads
Amazon Nova Micro: 30.5 (#295), Mercury 2.5: 39.5 (#156)
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| SciCode | — | 38.5% |
| LiveBench Coding | 20.2% | — |
| LMArena Coding | 1218 | — |
| ALE-Bench | — | 301.65 |
Agentic & Tool Use Not comparable
Amazon Nova Micro: 22.1 (#132), Mercury 2.5: —
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 22.3% | — |
Reasoning Mercury 2.5 leads
Amazon Nova Micro: 17.4 (#294), Mercury 2.5: 22.4 (#193)
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| CritPt | — | 0% |
| LiveBench Reasoning | 25.1% | — |
| LMArena Hard Prompts | 1191 | — |
| LiveBench Data Analysis | 34% | — |
| LiveBench | 29.6% | — |
Math Amazon Nova Micro leads
Amazon Nova Micro: 26.9 (#254), Mercury 2.5: 23.3 (#272)
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |
| Omni-MATH | 21.4% | — |
| LiveBench Math | 34.5% | — |
| LMArena Math | 1206 | — |
Knowledge Not comparable
Amazon Nova Micro: 29.6 (#237), Mercury 2.5: —
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| MMLU-Pro | 51.1% | — |
| Vectara Hallucination Rate | 5.5% | — |
| GPQA (HELM) | 38.3% | — |
| LMArena Expert | 1184 | — |
| MMLU | 70.8% | — |
Multilingual Not comparable
Amazon Nova Micro: 36.5 (#239), Mercury 2.5: —
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1186 | — |
| LMArena Chinese | 1209 | — |
| LMArena French | 1238 | — |
| LMArena German | 1192 | — |
| LMArena Japanese | 1154 | — |
| LMArena Korean | 1150 | — |
| LMArena Russian | 1185 | — |
| LMArena Spanish | 1225 | — |
Instruction Following Not comparable
Amazon Nova Micro: 56.3 (#272), Mercury 2.5: —
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LiveBench Instruction Following | 48% | — |
| IFEval | 76% | — |
| LMArena Instruction Following | 1174 | — |
Long Context Not comparable
Amazon Nova Micro: 36.5 (#229), Mercury 2.5: —
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1205 | — |
Writing & Preference Not comparable
Amazon Nova Micro: 39.5 (#247), Mercury 2.5: —
| Benchmark | Amazon Nova Micro | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1208 | — |
| LMArena Creative Writing | 1172 | — |
| WildBench | 74.3% | — |
| LMArena Multi-Turn | 1178 | — |
| LiveBench Language | 15.8% | — |
Frequently asked questions
Is Amazon Nova Micro better than Mercury 2.5?
Mercury 2.5 is the stronger model overall, scoring 33.5 to 30.4 on the Noometry Index.
Which is cheaper, Amazon Nova Micro or Mercury 2.5?
Amazon Nova Micro is cheaper. It lists at $0.035 per million input tokens and $0.14 per million output tokens; Mercury 2.5 lists at $0.04 and $0.15.
Is Amazon Nova Micro or Mercury 2.5 better for coding?
Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 30.5 in the Noometry coding category.
Which has the bigger context window?
Mercury 2.5 does, with 260K tokens against 128K.
How many benchmarks do Amazon Nova Micro and Mercury 2.5 share?
0 benchmarks have published results for both models. Amazon Nova Micro has 32 scored results on Noometry and Mercury 2.5 has 4.