Model comparison
Deepseek Coder v2 vs Mercury 2.5
Deepseek Coder v2 has enough public results to be ranked (#217); Mercury 2.5 does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
DeepSeekSummary
- The widest gap is in math, where Deepseek Coder v2 leads 32.3 to 22.4.
- Deepseek Coder v2 has downloadable open weights; the other is API-only.
Side by side
| Deepseek Coder v2 | Mercury 2.5 | |
|---|---|---|
| Provider | DeepSeek | Inception |
| Noometry Index | 35.3 | 30.2 |
| Released | 2024-06-17 | 2026-09-08 |
| Weights | Open | Proprietary |
| Context window | — | 260K |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.04 |
| Output $ / M tokens | — | $0.15 |
| Results tracked | 24 | 2 |
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Category by category
Coding Not comparable
Deepseek Coder v2: 37.5 (#178), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| BigCodeBench Instruct | 48.2% | — |
| LMArena Coding | 1251 | — |
| BigCodeBench Complete | 59.7% | — |
| ALE-Bench | — | 301.65 |
| HumanEval+ | 82.3% | — |
| MBPP+ | 75.1% | — |
Reasoning Not comparable
Deepseek Coder v2: 22.6 (#175), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Hard Prompts | 1207 | — |
| WinoGrande | 83.7% | — |
Math Deepseek Coder v2 leads
Deepseek Coder v2: 32.3 (#188), Mercury 2.5: 22.4
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |
| LMArena Math | 1241 | — |
| GSM8K | 94.5% | — |
Knowledge Not comparable
Deepseek Coder v2: 31.7 (#209), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Expert | 1181 | — |
| ARC (AI2) Challenge | 64.3% | — |
Multilingual Not comparable
Deepseek Coder v2: 36.4 (#235), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1182 | — |
| LMArena Chinese | 1201 | — |
| LMArena French | 1184 | — |
| LMArena German | 1164 | — |
| LMArena Japanese | 1126 | — |
| LMArena Korean | 1104 | — |
| LMArena Russian | 1188 | — |
| LMArena Spanish | 1153 | — |
Instruction Following Not comparable
Deepseek Coder v2: 61.9 (#237), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Instruction Following | 1180 | — |
Long Context Not comparable
Deepseek Coder v2: 37.0 (#219), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1219 | — |
Writing & Preference Not comparable
Deepseek Coder v2: 38.4 (#249), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1191 | — |
| LMArena Creative Writing | 1120 | — |
| LMArena Multi-Turn | 1176 | — |
Frequently asked questions
Is Deepseek Coder v2 better than Mercury 2.5?
Deepseek Coder v2 has enough public results to be ranked (#217); Mercury 2.5 does not yet, so treat this comparison as directional.
How many benchmarks do Deepseek Coder v2 and Mercury 2.5 share?
0 benchmarks have published results for both models. Deepseek Coder v2 has 24 scored results on Noometry and Mercury 2.5 has 2.