# GPT-4 Turbo vs StarCoder 2 15B

> GPT-4 Turbo has enough public results to be ranked (#292); StarCoder 2 15B does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/gpt-4-turbo-vs-starcoder-2-15b
- Last updated: 2026-10-11
- Shared benchmarks: 4

## Summary

- They share 4 benchmarks with published results for both. GPT-4 Turbo scores higher in 0 categories and StarCoder 2 15B in 1 category; one gap is clear of the uncertainty.
- The biggest single-benchmark swing is BigCodeBench Complete: 58.2% for GPT-4 Turbo and 38.4% for StarCoder 2 15B.
- StarCoder 2 15B has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| Provider | OpenAI | NVIDIA |
| Noometry Index | 30.5 | 38.1 |
| Rank | 292 | — |
| Context | 128K | — |
| Input $/M | $10 | — |
| Output $/M | $30 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-4 Turbo: 33.8 (#249)
- StarCoder 2 15B: 36.6

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| BigCodeBench Complete | 58.2% | 38.4% |
| HumanEval+ | 86.6% | 37.8% |
| WeirdML | 18% | — |
| BigCodeBench Instruct | 48.2% | — |
| LMArena Coding | 1268 | — |
| MBPP+ | 73.3% | — |

## Agentic & Tool Use

- GPT-4 Turbo: —
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| METR Time Horizons | 36.7% | — |

## Reasoning

- GPT-4 Turbo: 15.3 (#317)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| Epoch Capabilities Index | 127.25 | 105 |
| SimpleBench | 25.1% | — |
| Chess Puzzles | 6% | — |
| LMArena Hard Prompts | 1251 | — |
| DTBench | 61.6% | — |
| LMCA | 9.8% | — |
| ForecastBench | 59.4 | — |
| WinoGrande | — | 64.3% |

## Math

- GPT-4 Turbo: 9.0 (#322)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 0.7% | — |
| OTIS Mock AIME 2024-2025 | 6.7% | — |
| LMArena Math | 1272 | — |
| MATH Level 5 | 46.7% | — |
| GSM8K | — | 57.7% |

## Knowledge

- GPT-4 Turbo: 24.3 (#268)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| MMLU | 81.3% | 64.1% |
| GPQA Diamond | 46.6% | — |
| Confabulations | 28.4% | — |
| LMArena Expert | 1223 | — |
| ARC (AI2) Challenge | — | 47.2% |

## Multimodal

- GPT-4 Turbo: 30.6 (#110)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| LMArena Vision | 1090 | — |

## Multilingual

- GPT-4 Turbo: 40.5 (#216)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| LMArena Non-English | 1245 | — |
| LMArena Chinese | 1242 | — |
| LMArena French | 1276 | — |
| LMArena German | 1259 | — |
| LMArena Japanese | 1194 | — |
| LMArena Korean | 1187 | — |
| LMArena Russian | 1259 | — |
| LMArena Spanish | 1260 | — |

## Instruction Following

- GPT-4 Turbo: 65.8 (#216)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| LMArena Instruction Following | 1249 | — |

## Long Context

- GPT-4 Turbo: 38.0 (#206)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| LMArena Longer Query | 1254 | — |

## Writing & Preference

- GPT-4 Turbo: 47.7 (#206)
- StarCoder 2 15B: —

| Benchmark | GPT-4 Turbo | StarCoder 2 15B |
|---|---|---|
| LMArena Text | 1272 | — |
| LMArena Creative Writing | 1269 | — |
| LMArena Multi-Turn | 1267 | — |

## FAQ

### Is GPT-4 Turbo better than StarCoder 2 15B?

GPT-4 Turbo has enough public results to be ranked (#292); StarCoder 2 15B does not yet, so treat this comparison as directional.

### Is GPT-4 Turbo or StarCoder 2 15B better for coding?

StarCoder 2 15B scores higher on coding benchmarks: 36.6 versus 33.8 in the Noometry coding category.

### How many benchmarks do GPT-4 Turbo and StarCoder 2 15B share?

4 benchmarks have published results for both models. GPT-4 Turbo has 36 scored results on Noometry and StarCoder 2 15B has 7.