Model comparison
Mercury 2.5 vs StarCoder 2 15B
Mercury 2.5 has enough public results to be ranked (#242); StarCoder 2 15B does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
NVIDIASummary
- StarCoder 2 15B has downloadable open weights; the other is API-only.
Side by side
| Mercury 2.5 | StarCoder 2 15B | |
|---|---|---|
| Provider | Inception | NVIDIA |
| Noometry Index | 33.5 | 38.1 |
| Released | 2026-09-08 | 2024-02-20 |
| Weights | Proprietary | Open |
| Context window | 260K | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.04 | — |
| Output $ / M tokens | $0.15 | — |
| Results tracked | 4 | 7 |
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Category by category
Coding Mercury 2.5 leads
Mercury 2.5: 39.5 (#156), StarCoder 2 15B: 36.6
| Benchmark | Mercury 2.5 | StarCoder 2 15B |
|---|---|---|
| SciCode | 38.5% | — |
| BigCodeBench Complete | — | 38.4% |
| ALE-Bench | 301.65 | — |
| HumanEval+ | — | 37.8% |
Reasoning Not comparable
Mercury 2.5: 22.4 (#193), StarCoder 2 15B: —
| Benchmark | Mercury 2.5 | StarCoder 2 15B |
|---|---|---|
| CritPt | 0% | — |
| Epoch Capabilities Index | — | 105 |
| WinoGrande | — | 64.3% |
Math Not comparable
Mercury 2.5: 23.3 (#272), StarCoder 2 15B: —
| Benchmark | Mercury 2.5 | StarCoder 2 15B |
|---|---|---|
| ProofBench | 3% | — |
| GSM8K | — | 57.7% |
Knowledge Not comparable
Mercury 2.5: —, StarCoder 2 15B: —
| Benchmark | Mercury 2.5 | StarCoder 2 15B |
|---|---|---|
| ARC (AI2) Challenge | — | 47.2% |
| MMLU | — | 64.1% |
Frequently asked questions
Is Mercury 2.5 better than StarCoder 2 15B?
Mercury 2.5 has enough public results to be ranked (#242); StarCoder 2 15B does not yet, so treat this comparison as directional.
Is Mercury 2.5 or StarCoder 2 15B better for coding?
Mercury 2.5 scores higher on coding benchmarks: 39.5 versus 36.6 in the Noometry coding category.
How many benchmarks do Mercury 2.5 and StarCoder 2 15B share?
0 benchmarks have published results for both models. Mercury 2.5 has 4 scored results on Noometry and StarCoder 2 15B has 7.