# Deepseek Coder v2 vs Gemini 3.1 Flash Lite

> Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 35.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/deepseek-coder-v2-vs-gemini-3-1-flash-lite
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Deepseek Coder v2 scores higher in 2 categories and Gemini 3.1 Flash Lite in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Gemini 3.1 Flash Lite leads 60.9 to 38.2.
- Deepseek Coder v2 has downloadable open weights; the other is API-only.

## Snapshot

| | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| Provider | DeepSeek | Google |
| Noometry Index | 35.9 | 40.8 |
| Rank | 220 | 144 |
| Context | — | 1.05M |
| Input $/M | — | $0.25 |
| Output $/M | — | $1.50 |
| Weights | Open | Proprietary |

## Coding

- Deepseek Coder v2: 38.1 (#183)
- Gemini 3.1 Flash Lite: 37.8 (#188)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Coding | 1251 | 1400 |
| LMArena WebDev | — | 1256 |
| SciCode | — | 41.9% |
| WeirdML | — | 52.2% |
| BigCodeBench Instruct | 48.2% | — |
| BigCodeBench Complete | 59.7% | — |
| ALE-Bench | — | 797.73 |
| HumanEval+ | 82.3% | — |
| MBPP+ | 75.1% | — |

## Agentic & Tool Use

- Deepseek Coder v2: —
- Gemini 3.1 Flash Lite: 30.2 (#79)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| DeepResearch Bench | — | 37.3% |

## Reasoning

- Deepseek Coder v2: 23.6 (#176)
- Gemini 3.1 Flash Lite: 22.9 (#186)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Hard Prompts | 1207 | 1407 |
| Kagi LLM Benchmark | — | 67.2% |
| NYT Connections (extended) | — | 8.2% |
| CritPt | — | 1.1% |
| Chess Puzzles | — | 25% |
| EnigmaEval | — | 3% |
| Thematic Generalization | — | 63.3% |
| DTBench | — | 76.8% |
| LMCA | — | 35% |
| Epoch Capabilities Index | — | 144.47 |
| ForecastBench | — | 54.4 |
| WinoGrande | 83.7% | — |

## Math

- Deepseek Coder v2: 34.9 (#190)
- Gemini 3.1 Flash Lite: 40.7 (#90)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Math | 1241 | 1428 |
| FrontierMath (Tiers 1-3) | — | 27.7% |
| OTIS Mock AIME 2024-2025 | — | 80% |
| GSM8K | 94.5% | — |

## Knowledge

- Deepseek Coder v2: 32.3 (#212)
- Gemini 3.1 Flash Lite: 41.9 (#104)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Expert | 1181 | 1398 |
| GPQA Diamond | — | 81.8% |
| Humanity's Last Exam | — | 8.6% |
| Vectara Hallucination Rate | — | 8.2% |
| ARC (AI2) Challenge | 64.3% | — |

## Multimodal

- Deepseek Coder v2: —
- Gemini 3.1 Flash Lite: 39.4 (#60)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Vision | — | 1240 |

## Multilingual

- Deepseek Coder v2: 36.3 (#240)
- Gemini 3.1 Flash Lite: 52.3 (#86)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Non-English | 1182 | 1411 |
| LMArena Chinese | 1201 | 1461 |
| LMArena French | 1185 | 1424 |
| LMArena German | 1164 | 1429 |
| LMArena Japanese | 1126 | 1413 |
| LMArena Korean | 1104 | 1392 |
| LMArena Russian | 1188 | 1420 |
| LMArena Spanish | 1153 | 1421 |

## Instruction Following

- Deepseek Coder v2: 61.7 (#242)
- Gemini 3.1 Flash Lite: 72.7 (#131)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Instruction Following | 1180 | 1377 |

## Long Context

- Deepseek Coder v2: 37.0 (#224)
- Gemini 3.1 Flash Lite: 42.5 (#122)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Longer Query | 1219 | 1394 |

## Writing & Preference

- Deepseek Coder v2: 38.2 (#253)
- Gemini 3.1 Flash Lite: 60.9 (#94)

| Benchmark | Deepseek Coder v2 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Text | 1191 | 1416 |
| LMArena Creative Writing | 1120 | 1401 |
| LMArena Multi-Turn | 1177 | 1417 |

## FAQ

### Is Deepseek Coder v2 better than Gemini 3.1 Flash Lite?

Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 35.9 on the Noometry Index.

### Is Deepseek Coder v2 or Gemini 3.1 Flash Lite better for coding?

They score almost the same on coding (38.1 vs 37.8); test both on your own repository before choosing.

### How many benchmarks do Deepseek Coder v2 and Gemini 3.1 Flash Lite share?

17 benchmarks have published results for both models. Deepseek Coder v2 has 24 scored results on Noometry and Gemini 3.1 Flash Lite has 38.