# Deepseek Coder v2 vs Step 1o Turbo 202506

> Step 1o Turbo 202506 is the stronger model overall, scoring 39.1 to 35.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-coder-v2-vs-step-1o-turbo-202506
- Last updated: 2026-10-10
- Shared benchmarks: 13

## Summary

- They share 13 benchmarks with published results for both. Deepseek Coder v2 scores higher in 0 categories and Step 1o Turbo 202506 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 1o Turbo 202506 leads 53.4 to 38.4.
- Deepseek Coder v2 has downloadable open weights; the other is API-only.

## Snapshot

| | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| Provider | DeepSeek | StepFun |
| Noometry Index | 35.3 | 39.1 |
| Rank | 217 | 160 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Deepseek Coder v2: 37.5 (#178)
- Step 1o Turbo 202506: 38.6 (#158)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Coding | 1251 | 1339 |
| BigCodeBench Instruct | 48.2% | — |
| BigCodeBench Complete | 59.7% | — |
| HumanEval+ | 82.3% | — |
| MBPP+ | 75.1% | — |

## Reasoning

- Deepseek Coder v2: 22.6 (#175)
- Step 1o Turbo 202506: 25.7 (#127)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Hard Prompts | 1207 | 1336 |
| WinoGrande | 83.7% | — |

## Math

- Deepseek Coder v2: 32.3 (#188)
- Step 1o Turbo 202506: 33.9 (#163)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Math | 1241 | 1318 |
| GSM8K | 94.5% | — |

## Knowledge

- Deepseek Coder v2: 31.7 (#209)
- Step 1o Turbo 202506: 35.5 (#174)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Expert | 1181 | 1308 |
| ARC (AI2) Challenge | 64.3% | — |

## Multimodal

- Deepseek Coder v2: —
- Step 1o Turbo 202506: 35.4 (#75)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Vision | — | 1186 |

## Multilingual

- Deepseek Coder v2: 36.4 (#235)
- Step 1o Turbo 202506: 45.5 (#168)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Non-English | 1182 | 1313 |
| LMArena Chinese | 1201 | 1380 |
| LMArena German | 1164 | 1315 |
| LMArena Russian | 1188 | 1327 |
| LMArena French | 1184 | — |
| LMArena Japanese | 1126 | — |
| LMArena Korean | 1104 | — |
| LMArena Spanish | 1153 | — |

## Instruction Following

- Deepseek Coder v2: 61.9 (#237)
- Step 1o Turbo 202506: 69.4 (#171)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Instruction Following | 1180 | 1311 |

## Long Context

- Deepseek Coder v2: 37.0 (#219)
- Step 1o Turbo 202506: 41.1 (#141)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Longer Query | 1219 | 1350 |

## Writing & Preference

- Deepseek Coder v2: 38.4 (#249)
- Step 1o Turbo 202506: 53.4 (#154)

| Benchmark | Deepseek Coder v2 | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Text | 1191 | 1336 |
| LMArena Creative Writing | 1120 | 1308 |
| LMArena Multi-Turn | 1176 | 1341 |

## FAQ

### Is Deepseek Coder v2 better than Step 1o Turbo 202506?

Step 1o Turbo 202506 is the stronger model overall, scoring 39.1 to 35.3 on the Noometry Index.

### Is Deepseek Coder v2 or Step 1o Turbo 202506 better for coding?

Step 1o Turbo 202506 scores higher on coding benchmarks: 38.6 versus 37.5 in the Noometry coding category.

### How many benchmarks do Deepseek Coder v2 and Step 1o Turbo 202506 share?

13 benchmarks have published results for both models. Deepseek Coder v2 has 24 scored results on Noometry and Step 1o Turbo 202506 has 14.