# Mercury vs Mercury 2

> Mercury 2 is the stronger model overall, scoring 38.8 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-vs-mercury-2
- Last updated: 2026-10-10
- Shared benchmarks: 8

## Summary

- They share 8 benchmarks with published results for both. Mercury scores higher in 1 category and Mercury 2 in 5 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mercury 2 leads 54.0 to 46.2.

## Snapshot

| | Mercury | Mercury 2 |
|---|---|---|
| Provider | Inception | Inception |
| Noometry Index | 37.3 | 38.8 |
| Rank | 192 | 167 |
| Context | — | 128K |
| Input $/M | — | $0.25 |
| Output $/M | — | $0.75 |
| Weights | Proprietary | Proprietary |

## Coding

- Mercury: 38.1 (#164)
- Mercury 2: 33.2 (#250)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| LMArena Coding | 1323 | 1391 |
| LMArena WebDev | — | 1170 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |

## Reasoning

- Mercury: 16.8 (#288)
- Mercury 2: 23.0 (#170)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1284 | 1362 |
| Kagi LLM Benchmark | 21.6% | — |
| CritPt | — | 0.8% |

## Knowledge

- Mercury: —
- Mercury 2: 35.6 (#170)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| Vectara Hallucination Rate | — | 12.3% |
| LMArena Expert | — | 1358 |

## Multilingual

- Mercury: 41.7 (#201)
- Mercury 2: 46.8 (#153)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1259 | 1331 |
| LMArena Chinese | — | 1416 |
| LMArena Russian | — | 1303 |

## Instruction Following

- Mercury: 65.3 (#220)
- Mercury 2: 70.4 (#161)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1238 | 1328 |

## Long Context

- Mercury: 38.3 (#193)
- Mercury 2: 40.4 (#149)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1264 | 1329 |

## Writing & Preference

- Mercury: 46.2 (#216)
- Mercury 2: 54.0 (#151)

| Benchmark | Mercury | Mercury 2 |
|---|---|---|
| LMArena Text | 1282 | 1355 |
| LMArena Creative Writing | 1186 | 1289 |
| LMArena Multi-Turn | 1283 | 1358 |

## FAQ

### Is Mercury better than Mercury 2?

Mercury 2 is the stronger model overall, scoring 38.8 to 37.3 on the Noometry Index.

### Is Mercury or Mercury 2 better for coding?

Mercury scores higher on coding benchmarks: 38.1 versus 33.2 in the Noometry coding category.

### How many benchmarks do Mercury and Mercury 2 share?

8 benchmarks have published results for both models. Mercury has 9 scored results on Noometry and Mercury 2 has 17.