# Claude 2.1 vs Mercury

> Mercury is the stronger model overall, scoring 37.6 to 25.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-mercury
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where Mercury leads 38.7 to 26.2.

## Snapshot

| | Claude 2.1 | Mercury |
|---|---|---|
| Provider | Anthropic | Inception |
| Noometry Index | 25.2 | 37.6 |
| Rank | 345 | 199 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 26.2 (#327)
- Mercury: 38.7 (#170)

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| WeirdML | 7.1% | — |
| LMArena Coding | — | 1322 |

## Reasoning

- Claude 2.1: 21.4 (#221)
- Mercury: 17.5 (#293)

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| Kagi LLM Benchmark | — | 21.6% |
| LMArena Hard Prompts | — | 1285 |
| DTBench | 51% | — |
| Epoch Capabilities Index | 119.27 | — |
| ForecastBench | 54.2 | — |

## Math

- Claude 2.1: 10.2 (#315)
- Mercury: —

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | — |

## Knowledge

- Claude 2.1: 15.4 (#292)
- Mercury: —

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| GPQA Diamond | 33% | — |
| MMLU | 73.5% | — |

## Multilingual

- Claude 2.1: —
- Mercury: 41.6 (#206)

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| LMArena Non-English | — | 1260 |

## Instruction Following

- Claude 2.1: —
- Mercury: 65.2 (#224)

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| LMArena Instruction Following | — | 1239 |

## Long Context

- Claude 2.1: —
- Mercury: 38.4 (#198)

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| LMArena Longer Query | — | 1266 |

## Writing & Preference

- Claude 2.1: —
- Mercury: 46.2 (#221)

| Benchmark | Claude 2.1 | Mercury |
|---|---|---|
| LMArena Text | — | 1282 |
| LMArena Creative Writing | — | 1191 |
| LMArena Multi-Turn | — | 1282 |

## FAQ

### Is Claude 2.1 better than Mercury?

Mercury is the stronger model overall, scoring 37.6 to 25.2 on the Noometry Index.

### Is Claude 2.1 or Mercury better for coding?

Mercury scores higher on coding benchmarks: 38.7 versus 26.2 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and Mercury share?

0 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Mercury has 9.