# DeepSeek-V3.1 vs Gemini 1.5 Flash (May 2024)

> DeepSeek-V3.1 is the stronger model overall, scoring 42.2 to 32.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-v3-1-vs-gemini-1-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. DeepSeek-V3.1 scores higher in 7 categories and Gemini 1.5 Flash (May 2024) in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where DeepSeek-V3.1 leads 43.0 to 26.2.
- The biggest single-benchmark swing is DTBench: 82.7% for DeepSeek-V3.1 and 53.8% for Gemini 1.5 Flash (May 2024).
- DeepSeek-V3.1 has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| Provider | DeepSeek | Google |
| Noometry Index | 42.2 | 32.9 |
| Rank | 106 | 240 |
| Context | 164K | — |
| Input $/M | $0.25 | — |
| Output $/M | $0.95 | — |
| Weights | Open | Proprietary |

## Coding

- DeepSeek-V3.1: 39.8 (#140)
- Gemini 1.5 Flash (May 2024): 33.9 (#233)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| WeirdML | 38.4% | 24.9% |
| LMArena Coding | 1417 | 1262 |
| BigCodeBench Instruct | — | 43.5% |
| BigCodeBench Complete | — | 55.1% |
| HumanEval+ | — | 75.6% |
| MBPP+ | — | 67.5% |

## Agentic & Tool Use

- DeepSeek-V3.1: —
- Gemini 1.5 Flash (May 2024): 26.3 (#97)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| BALROG | — | 14.6% |

## Reasoning

- DeepSeek-V3.1: 27.3 (#109)
- Gemini 1.5 Flash (May 2024): 20.8 (#212)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Hard Prompts | 1417 | 1257 |
| DTBench | 82.7% | 53.8% |
| Epoch Capabilities Index | 139.92 | 129.37 |
| ForecastBench | 58 | 53.9 |
| SimpleBench | 40% | — |
| Kagi LLM Benchmark | 53.2% | — |
| LMCA | 24.3% | — |
| PIQA | — | 87.5% |

## Math

- DeepSeek-V3.1: 36.1 (#125)
- Gemini 1.5 Flash (May 2024): 20.8 (#274)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Math | 1420 | 1269 |
| OTIS Mock AIME 2024-2025 | — | 16.3% |
| Omni-MATH | — | 30.4% |
| MATH Level 5 | — | 61.9% |
| FrontierMath (Feb 2025 set) | — | 0% |
| GSM8K | — | 82.4% |

## Knowledge

- DeepSeek-V3.1: 43.0 (#86)
- Gemini 1.5 Flash (May 2024): 26.2 (#253)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Expert | 1403 | 1233 |
| GPQA Diamond | — | 47.3% |
| MMLU-Pro | — | 67.8% |
| Vectara Hallucination Rate | 5.5% | — |
| GPQA (HELM) | — | 43.7% |
| BoolQ | — | 85.8% |
| MMLU | — | 77.9% |

## Multimodal

- DeepSeek-V3.1: —
- Gemini 1.5 Flash (May 2024): 35.3 (#76)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Vision | — | 1141 |
| Video-MME | — | 70.3% |
| GeoBench | — | 76% |

## Multilingual

- DeepSeek-V3.1: 51.8 (#100)
- Gemini 1.5 Flash (May 2024): 43.1 (#184)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Non-English | 1400 | 1278 |
| LMArena Chinese | 1470 | 1295 |
| LMArena French | 1447 | 1257 |
| LMArena German | 1412 | 1262 |
| LMArena Japanese | 1374 | 1252 |
| LMArena Korean | 1337 | 1220 |
| LMArena Russian | 1405 | 1288 |
| LMArena Spanish | 1429 | 1242 |

## Instruction Following

- DeepSeek-V3.1: 74.1 (#105)
- Gemini 1.5 Flash (May 2024): 67.0 (#199)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Instruction Following | 1400 | 1258 |
| IFEval | — | 83.1% |

## Long Context

- DeepSeek-V3.1: 36.3 (#227)
- Gemini 1.5 Flash (May 2024): 39.0 (#182)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Longer Query | 1422 | 1284 |
| Fiction.LiveBench | 52.8% | — |

## Writing & Preference

- DeepSeek-V3.1: 60.5 (#93)
- Gemini 1.5 Flash (May 2024): 48.9 (#190)

| Benchmark | DeepSeek-V3.1 | Gemini 1.5 Flash (May 2024) |
|---|---|---|
| LMArena Text | 1420 | 1287 |
| LMArena Creative Writing | 1401 | 1285 |
| LMArena Multi-Turn | 1408 | 1253 |
| EQ-Bench Creative Writing | 1436 | — |
| WildBench | — | 79.2% |

## FAQ

### Is DeepSeek-V3.1 better than Gemini 1.5 Flash (May 2024)?

DeepSeek-V3.1 is the stronger model overall, scoring 42.2 to 32.9 on the Noometry Index.

### Is DeepSeek-V3.1 or Gemini 1.5 Flash (May 2024) better for coding?

DeepSeek-V3.1 scores higher on coding benchmarks: 39.8 versus 33.9 in the Noometry coding category.

### How many benchmarks do DeepSeek-V3.1 and Gemini 1.5 Flash (May 2024) share?

21 benchmarks have published results for both models. DeepSeek-V3.1 has 27 scored results on Noometry and Gemini 1.5 Flash (May 2024) has 42.