# Hy3 vs Mercury 2

> Hy3 is the stronger model overall, scoring 43.6 to 38.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/hy3-vs-mercury-2
- Last updated: 2026-10-10
- Shared benchmarks: 12

## Summary

- They share 12 benchmarks with published results for both. Hy3 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 Hy3 leads 46.6 to 33.2.
- Hy3 is cheaper at $0.13 / $0.53 per million input/output tokens, against $0.25 / $0.75 for Mercury 2.
- Hy3 accepts more context: 262K tokens versus 128K.
- Hy3 has downloadable open weights; the other is API-only.

## Snapshot

| | Hy3 | Mercury 2 |
|---|---|---|
| Provider | Tencent | Inception |
| Noometry Index | 43.6 | 38.8 |
| Rank | 79 | 167 |
| Context | 262K | 128K |
| Input $/M | $0.13 | $0.25 |
| Output $/M | $0.53 | $0.75 |
| Weights | Open | Proprietary |

## Coding

- Hy3: 46.6 (#60)
- Mercury 2: 33.2 (#250)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena WebDev | 1509 | 1170 |
| LMArena Coding | 1465 | 1391 |
| SciCode | — | 38.7% |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |

## Reasoning

- Hy3: 25.0 (#134)
- Mercury 2: 23.0 (#170)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Hard Prompts | 1449 | 1362 |
| NYT Connections (extended) | 41.2% | — |
| CritPt | — | 0.8% |

## Math

- Hy3: 37.4 (#98)
- Mercury 2: —

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Math | 1475 | — |

## Knowledge

- Hy3: 40.2 (#108)
- Mercury 2: 35.6 (#170)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Expert | 1461 | 1358 |
| Vectara Hallucination Rate | — | 12.3% |

## Multilingual

- Hy3: 53.7 (#60)
- Mercury 2: 46.8 (#153)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1427 | 1331 |
| LMArena Chinese | 1496 | 1416 |
| LMArena Russian | 1435 | 1303 |
| LMArena French | 1461 | — |
| LMArena Korean | 1390 | — |
| LMArena Spanish | 1448 | — |

## Instruction Following

- Hy3: 75.3 (#68)
- Mercury 2: 70.4 (#161)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1425 | 1328 |

## Long Context

- Hy3: 44.1 (#70)
- Mercury 2: 40.4 (#149)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1443 | 1329 |

## Writing & Preference

- Hy3: 62.5 (#75)
- Mercury 2: 54.0 (#151)

| Benchmark | Hy3 | Mercury 2 |
|---|---|---|
| LMArena Text | 1442 | 1355 |
| LMArena Creative Writing | 1399 | 1289 |
| LMArena Multi-Turn | 1436 | 1358 |

## FAQ

### Is Hy3 better than Mercury 2?

Hy3 is the stronger model overall, scoring 43.6 to 38.8 on the Noometry Index.

### Which is cheaper, Hy3 or Mercury 2?

Hy3 is cheaper. It lists at $0.13 per million input tokens and $0.53 per million output tokens; Mercury 2 lists at $0.25 and $0.75.

### Is Hy3 or Mercury 2 better for coding?

Hy3 scores higher on coding benchmarks: 46.6 versus 33.2 in the Noometry coding category.

### Which has the bigger context window?

Hy3 does, with 262K tokens against 128K.

### How many benchmarks do Hy3 and Mercury 2 share?

12 benchmarks have published results for both models. Hy3 has 17 scored results on Noometry and Mercury 2 has 17.