# DeepSeek-V2.5 (Sep 2024) vs Grok 3

> Grok 3 is the stronger model overall, scoring 39.9 to 37.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v2-5-vs-grok-3
- Last updated: 2026-10-11
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. DeepSeek-V2.5 (Sep 2024) scores higher in 2 categories and Grok 3 in 6 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where DeepSeek-V2.5 (Sep 2024) leads 25.6 to 13.7.
- The biggest single-benchmark swing is Aider Polyglot: 17.8% for DeepSeek-V2.5 (Sep 2024) and 53.3% for Grok 3.
- DeepSeek-V2.5 (Sep 2024) has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| Provider | DeepSeek | xAI |
| Noometry Index | 37.6 | 39.9 |
| Rank | 200 | 157 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- DeepSeek-V2.5 (Sep 2024): 31.7 (#281)
- Grok 3: 41.9 (#115)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| Aider Polyglot | 17.8% | 53.3% |
| LMArena Coding | 1309 | 1432 |
| WeirdML | — | 37.2% |
| BigCodeBench Instruct | 48.6% | — |
| BigCodeBench Complete | 53.2% | — |
| HumanEval+ | 83.5% | — |
| MBPP+ | 74.1% | — |

## Agentic & Tool Use

- DeepSeek-V2.5 (Sep 2024): —
- Grok 3: 30.5 (#76)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| BALROG | — | 29.5% |

## Reasoning

- DeepSeek-V2.5 (Sep 2024): 25.6 (#145)
- Grok 3: 13.7 (#333)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Hard Prompts | 1289 | 1434 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| Kagi LLM Benchmark | — | 61.3% |
| ARC-AGI-1 | — | 5.5% |
| Epoch Capabilities Index | — | 138.33 |

## Math

- DeepSeek-V2.5 (Sep 2024): 35.9 (#177)
- Grok 3: 38.0 (#145)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Math | 1288 | 1391 |
| OTIS Mock AIME 2024-2025 | — | 55.6% |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- DeepSeek-V2.5 (Sep 2024): 34.8 (#193)
- Grok 3: 46.2 (#82)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Expert | 1266 | 1421 |
| GPQA Diamond | — | 75.8% |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| Vectara Hallucination Rate | — | 5.8% |
| GPQA (HELM) | — | 65% |

## Multilingual

- DeepSeek-V2.5 (Sep 2024): 42.5 (#193)
- Grok 3: 52.3 (#87)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Non-English | 1273 | 1410 |
| LMArena Chinese | 1318 | 1448 |
| LMArena French | 1289 | 1460 |
| LMArena German | 1258 | 1431 |
| LMArena Japanese | 1228 | 1387 |
| LMArena Korean | 1209 | 1373 |
| LMArena Russian | 1289 | 1416 |
| LMArena Spanish | 1248 | 1417 |

## Instruction Following

- DeepSeek-V2.5 (Sep 2024): 67.5 (#194)
- Grok 3: 75.0 (#73)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1280 | 1409 |
| IFEval | — | 88.4% |

## Long Context

- DeepSeek-V2.5 (Sep 2024): 39.5 (#174)
- Grok 3: 38.7 (#192)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1301 | 1439 |
| Fiction.LiveBench | — | 58.3% |

## Writing & Preference

- DeepSeek-V2.5 (Sep 2024): 49.8 (#187)
- Grok 3: 55.8 (#141)

| Benchmark | DeepSeek-V2.5 (Sep 2024) | Grok 3 |
|---|---|---|
| LMArena Text | 1294 | 1426 |
| LMArena Creative Writing | 1285 | 1414 |
| LMArena Multi-Turn | 1297 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| EQ-Bench Creative Writing | — | 1186 |
| WildBench | — | 84.9% |

## FAQ

### Is DeepSeek-V2.5 (Sep 2024) better than Grok 3?

Grok 3 is the stronger model overall, scoring 39.9 to 37.6 on the Noometry Index.

### Is DeepSeek-V2.5 (Sep 2024) or Grok 3 better for coding?

Grok 3 scores higher on coding benchmarks: 41.9 versus 31.7 in the Noometry coding category.

### How many benchmarks do DeepSeek-V2.5 (Sep 2024) and Grok 3 share?

18 benchmarks have published results for both models. DeepSeek-V2.5 (Sep 2024) has 22 scored results on Noometry and Grok 3 has 40.