# DeepSeek V4.1 Flash vs Grok 3

> DeepSeek V4.1 Flash is the stronger model overall, scoring 52.8 to 39.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v4-1-flash-vs-grok-3
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. DeepSeek V4.1 Flash scores higher in 9 categories and Grok 3 in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek V4.1 Flash leads 50.2 to 13.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.3% for DeepSeek V4.1 Flash and 55.6% for Grok 3.
- DeepSeek V4.1 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| Provider | DeepSeek | xAI |
| Noometry Index | 52.8 | 39.9 |
| Rank | 38 | 157 |
| Context | 1M | — |
| Input $/M | $0.15 | — |
| Output $/M | $0.60 | — |
| Weights | Open | Proprietary |

## Coding

- DeepSeek V4.1 Flash: 52.9 (#32)
- Grok 3: 41.9 (#115)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Coding | 1506 | 1432 |
| Aider Polyglot | — | 53.3% |
| LMArena WebDev | 1619 | — |
| SciCode | 51.9% | — |
| WeirdML | — | 37.2% |
| ALE-Bench | 1,092 | — |

## Agentic & Tool Use

- DeepSeek V4.1 Flash: 31.2 (#69)
- Grok 3: 30.5 (#76)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| APEX-Agents | 39.5% | — |
| BALROG | — | 29.5% |
| GDP.pdf | 19.8% | — |

## Reasoning

- DeepSeek V4.1 Flash: 50.2 (#36)
- Grok 3: 13.7 (#333)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Hard Prompts | 1483 | 1434 |
| Epoch Capabilities Index | 154.9 | 138.33 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| Kagi LLM Benchmark | — | 61.3% |
| NYT Connections (extended) | 89.6% | — |
| ARC-AGI-1 | — | 5.5% |
| CritPt | 14.3% | — |
| Mystery Game Puzzles | 43% | — |
| DTBench | 89.9% | — |
| LMCA | 47% | — |
| Surface Evolver Bench | 46.3% | — |

## Math

- DeepSeek V4.1 Flash: 66.7 (#25)
- Grok 3: 38.0 (#145)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 98.3% | 55.6% |
| LMArena Math | 1477 | 1391 |
| FrontierMath (Tiers 1-3) | 67.4% | — |
| FrontierMath Tier 4 | 26.8% | — |
| ProofBench | 54% | — |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- DeepSeek V4.1 Flash: 57.9 (#38)
- Grok 3: 46.2 (#82)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| GPQA Diamond | 89.8% | 75.8% |
| LMArena Expert | 1506 | 1421 |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 5.8% |
| GPQA (HELM) | — | 65% |

## Multimodal

- DeepSeek V4.1 Flash: 39.1 (#61)
- Grok 3: —

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Vision | 1277 | — |
| Furniture Assembly | 34.2% | — |

## Multilingual

- DeepSeek V4.1 Flash: 55.0 (#35)
- Grok 3: 52.3 (#87)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Non-English | 1448 | 1410 |
| LMArena Chinese | 1497 | 1448 |
| LMArena French | 1452 | 1460 |
| LMArena German | 1484 | 1431 |
| LMArena Japanese | 1412 | 1387 |
| LMArena Korean | 1452 | 1373 |
| LMArena Russian | 1471 | 1416 |
| LMArena Spanish | 1459 | 1417 |

## Instruction Following

- DeepSeek V4.1 Flash: 77.3 (#26)
- Grok 3: 75.0 (#73)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1474 | 1409 |
| IFEval | — | 88.4% |

## Long Context

- DeepSeek V4.1 Flash: 45.2 (#47)
- Grok 3: 38.7 (#192)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1475 | 1439 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- DeepSeek V4.1 Flash: 65.4 (#48)
- Grok 3: 55.8 (#141)

| Benchmark | DeepSeek V4.1 Flash | Grok 3 |
|---|---|---|
| LMArena Text | 1462 | 1426 |
| LMArena Creative Writing | 1435 | 1414 |
| EQ-Bench Creative Writing | 1540 | 1186 |
| LMArena Multi-Turn | 1457 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| WildBench | — | 84.9% |

## FAQ

### Is DeepSeek V4.1 Flash better than Grok 3?

DeepSeek V4.1 Flash is the stronger model overall, scoring 52.8 to 39.9 on the Noometry Index.

### Is DeepSeek V4.1 Flash or Grok 3 better for coding?

DeepSeek V4.1 Flash scores higher on coding benchmarks: 52.9 versus 41.9 in the Noometry coding category.

### How many benchmarks do DeepSeek V4.1 Flash and Grok 3 share?

21 benchmarks have published results for both models. DeepSeek V4.1 Flash has 37 scored results on Noometry and Grok 3 has 40.