# Mercury vs Qwen3.5-9B

> Mercury is the stronger model overall, scoring 37.3 to 33.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mercury-vs-qwen3-5-9b
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Qwen3.5-9B leads 22.5 to 16.8.
- Qwen3.5-9B has downloadable open weights; the other is API-only.

## Snapshot

| | Mercury | Qwen3.5-9B |
|---|---|---|
| Provider | Inception | Alibaba (Qwen) |
| Noometry Index | 37.3 | 33.3 |
| Rank | 192 | 235 |
| Context | — | 262K |
| Input $/M | — | $0.10 |
| Output $/M | — | $0.15 |
| Weights | Proprietary | Open |

## Coding

- Mercury: 38.1 (#164)
- Qwen3.5-9B: 35.3 (#213)

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| SciCode | — | 27.5% |
| LMArena Coding | 1323 | — |

## Agentic & Tool Use

- Mercury: —
- Qwen3.5-9B: 14.4 (#143)

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| Terminal-Bench | — | 9.2% |

## Reasoning

- Mercury: 16.8 (#288)
- Qwen3.5-9B: 22.5 (#178)

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| Kagi LLM Benchmark | 21.6% | — |
| CritPt | — | 0.3% |
| Chess Puzzles | — | 12% |
| LMArena Hard Prompts | 1284 | — |
| DTBench | — | 71.2% |
| LMCA | — | 24.5% |
| Epoch Capabilities Index | — | 139.45 |

## Math

- Mercury: —
- Qwen3.5-9B: 33.5 (#174)

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| MathArena Final-Answer Competitions | — | 48.5% |
| OTIS Mock AIME 2024-2025 | — | 61.7% |

## Knowledge

- Mercury: —
- Qwen3.5-9B: 46.0 (#77)

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| GPQA Diamond | — | 79% |

## Multilingual

- Mercury: 41.7 (#201)
- Qwen3.5-9B: —

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Non-English | 1259 | — |

## Instruction Following

- Mercury: 65.3 (#220)
- Qwen3.5-9B: —

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Instruction Following | 1238 | — |

## Long Context

- Mercury: 38.3 (#193)
- Qwen3.5-9B: —

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Longer Query | 1264 | — |

## Writing & Preference

- Mercury: 46.2 (#216)
- Qwen3.5-9B: —

| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Text | 1282 | — |
| LMArena Creative Writing | 1186 | — |
| LMArena Multi-Turn | 1283 | — |

## FAQ

### Is Mercury better than Qwen3.5-9B?

Mercury is the stronger model overall, scoring 37.3 to 33.3 on the Noometry Index.

### Is Mercury or Qwen3.5-9B better for coding?

Mercury scores higher on coding benchmarks: 38.1 versus 35.3 in the Noometry coding category.

### How many benchmarks do Mercury and Qwen3.5-9B share?

0 benchmarks have published results for both models. Mercury has 9 scored results on Noometry and Qwen3.5-9B has 10.