# Mercury vs Yi-34B

> Mercury is the stronger model overall, scoring 37.3 to 27.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-vs-yi-34b
- Last updated: 2026-10-10
- Shared benchmarks: 8

## Summary

- They share 8 benchmarks with published results for both. Mercury scores higher in 5 categories and Yi-34B in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mercury leads 46.2 to 34.3.
- Yi-34B has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury | Yi-34B |
|---|---|---|
| Provider | Inception | 01.AI |
| Noometry Index | 37.3 | 27.4 |
| Rank | 192 | 325 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Mercury: 38.1 (#164)
- Yi-34B: 31.8 (#269)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Coding | 1323 | 1112 |

## Reasoning

- Mercury: 16.8 (#288)
- Yi-34B: 20.3 (#222)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Hard Prompts | 1284 | 1104 |
| Kagi LLM Benchmark | 21.6% | — |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.28 |

## Math

- Mercury: —
- Yi-34B: 19.8 (#277)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Math | — | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |

## Knowledge

- Mercury: —
- Yi-34B: 7.5 (#304)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| GPQA Diamond | — | 14.7% |
| LMArena Expert | — | 1061 |
| MMLU | — | 76.3% |

## Multilingual

- Mercury: 41.7 (#201)
- Yi-34B: 29.9 (#259)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Non-English | 1259 | 1079 |
| LMArena Chinese | — | 1175 |
| LMArena French | — | 1080 |
| LMArena German | — | 1042 |
| LMArena Japanese | — | 993 |
| LMArena Korean | — | 959 |
| LMArena Russian | — | 1050 |
| LMArena Spanish | — | 1070 |

## Instruction Following

- Mercury: 65.3 (#220)
- Yi-34B: 56.4 (#269)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Instruction Following | 1238 | 1091 |

## Long Context

- Mercury: 38.3 (#193)
- Yi-34B: 33.2 (#259)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Longer Query | 1264 | 1094 |

## Writing & Preference

- Mercury: 46.2 (#216)
- Yi-34B: 34.3 (#268)

| Benchmark | Mercury | Yi-34B |
|---|---|---|
| LMArena Text | 1282 | 1129 |
| LMArena Creative Writing | 1186 | 1108 |
| LMArena Multi-Turn | 1283 | 1113 |

## FAQ

### Is Mercury better than Yi-34B?

Mercury is the stronger model overall, scoring 37.3 to 27.4 on the Noometry Index.

### Is Mercury or Yi-34B better for coding?

Mercury scores higher on coding benchmarks: 38.1 versus 31.8 in the Noometry coding category.

### How many benchmarks do Mercury and Yi-34B share?

8 benchmarks have published results for both models. Mercury has 9 scored results on Noometry and Yi-34B has 23.