Model comparison
Deepseek Coder v2 vs Mercury 2.5
Deepseek Coder v2 is the stronger model overall, scoring 35.9 to 33.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in math, where Deepseek Coder v2 leads 34.9 to 23.3.
- 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 | 35.9 | 33.5 |
| 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 | 4 |
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Category by category
Coding Mercury 2.5 leads
Deepseek Coder v2: 38.1 (#183), Mercury 2.5: 39.5 (#156)
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| SciCode | — | 38.5% |
| BigCodeBench Instruct | 48.2% | — |
| LMArena Coding | 1251 | — |
| BigCodeBench Complete | 59.7% | — |
| ALE-Bench | — | 301.65 |
| HumanEval+ | 82.3% | — |
| MBPP+ | 75.1% | — |
Reasoning Deepseek Coder v2 leads
Deepseek Coder v2: 23.6 (#176), Mercury 2.5: 22.4 (#193)
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| CritPt | — | 0% |
| LMArena Hard Prompts | 1207 | — |
| WinoGrande | 83.7% | — |
Math Deepseek Coder v2 leads
Deepseek Coder v2: 34.9 (#190), Mercury 2.5: 23.3 (#272)
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| ProofBench | — | 3% |
| LMArena Math | 1241 | — |
| GSM8K | 94.5% | — |
Knowledge Not comparable
Deepseek Coder v2: 32.3 (#212), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Expert | 1181 | — |
| ARC (AI2) Challenge | 64.3% | — |
Multilingual Not comparable
Deepseek Coder v2: 36.3 (#240), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1182 | — |
| LMArena Chinese | 1201 | — |
| LMArena French | 1185 | — |
| LMArena German | 1164 | — |
| LMArena Japanese | 1126 | — |
| LMArena Korean | 1104 | — |
| LMArena Russian | 1188 | — |
| LMArena Spanish | 1153 | — |
Instruction Following Not comparable
Deepseek Coder v2: 61.7 (#242), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Instruction Following | 1180 | — |
Long Context Not comparable
Deepseek Coder v2: 37.0 (#224), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1219 | — |
Writing & Preference Not comparable
Deepseek Coder v2: 38.2 (#253), Mercury 2.5: —
| Benchmark | Deepseek Coder v2 | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1191 | — |
| LMArena Creative Writing | 1120 | — |
| LMArena Multi-Turn | 1177 | — |
Frequently asked questions
Is Deepseek Coder v2 better than Mercury 2.5?
Deepseek Coder v2 is the stronger model overall, scoring 35.9 to 33.5 on the Noometry Index.
Is Deepseek Coder v2 or Mercury 2.5 better for coding?
Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 38.1 in the Noometry coding category.
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 4.