# DeepSeek V4 Pro vs Step 3

> DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 40.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v4-pro-vs-step-3
- Last updated: 2026-10-11
- Shared benchmarks: 16

## Summary

- They share 16 benchmarks with published results for both. DeepSeek V4 Pro scores higher in 8 categories and Step 3 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4 Pro leads 56.5 to 28.4.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 53.5% for DeepSeek V4 Pro and 62.3% for Step 3.

## Snapshot

| | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| Provider | DeepSeek | StepFun |
| Noometry Index | 54.3 | 40.5 |
| Rank | 31 | 149 |
| Context | 1M | — |
| Input $/M | $0.66 | — |
| Output $/M | $1.98 | — |
| Weights | Open | Open |

## Coding

- DeepSeek V4 Pro: 52.4 (#34)
- Step 3: 40.1 (#147)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Coding | 1470 | 1367 |
| SWE-bench Verified | 77.6% | — |
| FrontierCode | 28.6% | — |
| LMArena WebDev | 1582 | — |
| SciCode | 51% | — |
| WeirdML | 66.2% | — |
| ALE-Bench | 1,403 | — |

## Agentic & Tool Use

- DeepSeek V4 Pro: 32.8 (#58)
- Step 3: —

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| APEX-Agents | 47.3% | — |
| Vending-Bench 2 | 3,285 | — |

## Reasoning

- DeepSeek V4 Pro: 56.5 (#24)
- Step 3: 28.4 (#105)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| Kagi LLM Benchmark | 53.5% | 62.3% |
| LMArena Hard Prompts | 1461 | 1355 |
| ARC-AGI-2 | 61.3% | — |
| NYT Connections (extended) | 91.3% | — |
| ARC-AGI-1 | 90.5% | — |
| CritPt | 18% | — |
| Chess Puzzles | 47% | — |
| Mystery Game Puzzles | 43% | — |
| DTBench | 93.9% | — |
| LMCA | 45.5% | — |
| Surface Evolver Bench | 40% | — |
| Epoch Capabilities Index | 155.31 | — |
| ForecastBench | 56.1 | — |

## Math

- DeepSeek V4 Pro: 64.8 (#30)
- Step 3: 37.6 (#148)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Math | 1455 | 1366 |
| FrontierMath (Tiers 1-3) | 64.6% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.6% | — |
| OTIS Mock AIME 2024-2025 | 98.6% | — |
| ProofBench | 50% | — |

## Knowledge

- DeepSeek V4 Pro: 59.5 (#31)
- Step 3: 36.8 (#164)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Expert | 1464 | 1333 |
| GPQA Diamond | 91.7% | — |
| SimpleQA Verified | 52.9% | — |
| Vectara Hallucination Rate | 8.6% | — |

## Multimodal

- DeepSeek V4 Pro: —
- Step 3: 35.5 (#86)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Vision | — | 1177 |

## Multilingual

- DeepSeek V4 Pro: 54.4 (#45)
- Step 3: 46.3 (#159)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Non-English | 1439 | 1327 |
| LMArena Chinese | 1486 | 1397 |
| LMArena German | 1458 | 1371 |
| LMArena Korean | 1447 | 1269 |
| LMArena Russian | 1453 | 1331 |
| LMArena Spanish | 1458 | 1371 |
| LMArena French | 1472 | — |
| LMArena Japanese | 1445 | — |

## Instruction Following

- DeepSeek V4 Pro: 76.1 (#47)
- Step 3: 70.4 (#164)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Instruction Following | 1448 | 1332 |

## Long Context

- DeepSeek V4 Pro: 45.0 (#51)
- Step 3: 40.3 (#157)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Longer Query | 1458 | 1326 |
| CL-bench Life | 13.5% | — |

## Writing & Preference

- DeepSeek V4 Pro: 65.5 (#46)
- Step 3: 54.3 (#151)

| Benchmark | DeepSeek V4 Pro | Step 3 |
|---|---|---|
| LMArena Text | 1451 | 1350 |
| LMArena Creative Writing | 1446 | 1321 |
| LMArena Multi-Turn | 1467 | 1341 |
| EQ-Bench Creative Writing | 1553 | — |
| EQ-Bench 4 | 1166 | — |

## FAQ

### Is DeepSeek V4 Pro better than Step 3?

DeepSeek V4 Pro is the stronger model overall, scoring 54.3 to 40.5 on the Noometry Index.

### Is DeepSeek V4 Pro or Step 3 better for coding?

DeepSeek V4 Pro scores higher on coding benchmarks: 52.4 versus 40.1 in the Noometry coding category.

### How many benchmarks do DeepSeek V4 Pro and Step 3 share?

16 benchmarks have published results for both models. DeepSeek V4 Pro has 48 scored results on Noometry and Step 3 has 17.