Model comparison
Mercury vs Qwen3.5-9B
Mercury is the stronger model overall, scoring 37.6 to 33.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
Alibaba (Qwen)Summary
- The widest gap is in reasoning, where Qwen3.5-9B leads 23.1 to 17.5.
- Qwen3.5-9B has downloadable open weights; the other is API-only.
Side by side
| Mercury | Qwen3.5-9B | |
|---|---|---|
| Provider | Inception | Alibaba (Qwen) |
| Noometry Index | 37.6 | 33.8 |
| Released | — | 2026-02-23 |
| Weights | Proprietary | Open |
| Context window | — | 262K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.15 |
| Results tracked | 9 | 10 |
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Category by category
Coding Mercury leads
Mercury: 38.7 (#170), Qwen3.5-9B: 35.9 (#217)
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| SciCode | — | 27.5% |
| LMArena Coding | 1322 | — |
Agentic & Tool Use Not comparable
Mercury: —, Qwen3.5-9B: 14.5 (#151)
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| Terminal-Bench | — | 9.2% |
Reasoning Qwen3.5-9B leads
Mercury: 17.5 (#293), Qwen3.5-9B: 23.1 (#182)
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| Kagi LLM Benchmark | 21.6% | — |
| CritPt | — | 0.3% |
| Chess Puzzles | — | 12% |
| LMArena Hard Prompts | 1285 | — |
| DTBench | — | 71.2% |
| LMCA | — | 24.5% |
| Epoch Capabilities Index | — | 139.46 |
Math Not comparable
Mercury: —, Qwen3.5-9B: 34.8 (#192)
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| MathArena Final-Answer Competitions | — | 48.5% |
| OTIS Mock AIME 2024-2025 | — | 61.7% |
Knowledge Not comparable
Mercury: —, Qwen3.5-9B: 46.0 (#84)
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| GPQA Diamond | — | 79% |
Multilingual Not comparable
Mercury: 41.6 (#206), Qwen3.5-9B: —
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Non-English | 1260 | — |
Instruction Following Not comparable
Mercury: 65.2 (#224), Qwen3.5-9B: —
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Instruction Following | 1239 | — |
Long Context Not comparable
Mercury: 38.4 (#198), Qwen3.5-9B: —
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Longer Query | 1266 | — |
Writing & Preference Not comparable
Mercury: 46.2 (#221), Qwen3.5-9B: —
| Benchmark | Mercury | Qwen3.5-9B |
|---|---|---|
| LMArena Text | 1282 | — |
| LMArena Creative Writing | 1191 | — |
| LMArena Multi-Turn | 1282 | — |
Frequently asked questions
Is Mercury better than Qwen3.5-9B?
Mercury is the stronger model overall, scoring 37.6 to 33.8 on the Noometry Index.
Is Mercury or Qwen3.5-9B better for coding?
Mercury scores higher on coding benchmarks: 38.7 versus 35.9 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.