# Claude 2.1 vs Gemini 3.1 Flash Lite

> Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 24.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-1-vs-gemini-3-1-flash-lite
- Last updated: 2026-10-10
- Shared benchmarks: 6

## Summary

- They share 6 benchmarks with published results for both. Claude 2.1 scores higher in 0 categories and Gemini 3.1 Flash Lite in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 3.1 Flash Lite leads 39.5 to 9.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 1.9% for Claude 2.1 and 80% for Gemini 3.1 Flash Lite.

## Snapshot

| | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 24.9 | 40.4 |
| Rank | 340 | 141 |
| Context | — | 1.05M |
| Input $/M | — | $0.25 |
| Output $/M | — | $1.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2.1: 25.8 (#322)
- Gemini 3.1 Flash Lite: 37.5 (#179)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| WeirdML | 7.1% | 52.2% |
| LMArena WebDev | — | 1256 |
| SciCode | — | 41.9% |
| LMArena Coding | — | 1400 |
| ALE-Bench | — | 797.73 |

## Agentic & Tool Use

- Claude 2.1: —
- Gemini 3.1 Flash Lite: 29.9 (#72)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| DeepResearch Bench | — | 37.3% |

## Reasoning

- Claude 2.1: 20.6 (#216)
- Gemini 3.1 Flash Lite: 22.3 (#181)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| DTBench | 51% | 76.8% |
| Epoch Capabilities Index | 119.22 | 144.45 |
| ForecastBench | 54.2 | 54.4 |
| Kagi LLM Benchmark | — | 67.2% |
| NYT Connections (extended) | — | 8.2% |
| CritPt | — | 1.1% |
| Chess Puzzles | — | 25% |
| EnigmaEval | — | 3% |
| Thematic Generalization | — | 63.3% |
| LMArena Hard Prompts | — | 1407 |
| LMCA | — | 35% |

## Math

- Claude 2.1: 9.6 (#309)
- Gemini 3.1 Flash Lite: 39.5 (#82)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 1.9% | 80% |
| FrontierMath (Tiers 1-3) | — | 27.7% |
| LMArena Math | — | 1427 |

## Knowledge

- Claude 2.1: 15.5 (#287)
- Gemini 3.1 Flash Lite: 41.7 (#95)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| GPQA Diamond | 33% | 81.8% |
| Humanity's Last Exam | — | 8.6% |
| Vectara Hallucination Rate | — | 8.2% |
| LMArena Expert | — | 1397 |
| MMLU | 73.5% | — |

## Multimodal

- Claude 2.1: —
- Gemini 3.1 Flash Lite: 38.7 (#57)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Vision | — | 1240 |

## Multilingual

- Claude 2.1: —
- Gemini 3.1 Flash Lite: 52.5 (#82)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Non-English | — | 1410 |
| LMArena Chinese | — | 1461 |
| LMArena French | — | 1423 |
| LMArena German | — | 1429 |
| LMArena Japanese | — | 1411 |
| LMArena Korean | — | 1393 |
| LMArena Russian | — | 1420 |
| LMArena Spanish | — | 1420 |

## Instruction Following

- Claude 2.1: —
- Gemini 3.1 Flash Lite: 72.9 (#126)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Instruction Following | — | 1376 |

## Long Context

- Claude 2.1: —
- Gemini 3.1 Flash Lite: 42.5 (#117)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Longer Query | — | 1394 |

## Writing & Preference

- Claude 2.1: —
- Gemini 3.1 Flash Lite: 61.0 (#90)

| Benchmark | Claude 2.1 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Text | — | 1416 |
| LMArena Creative Writing | — | 1401 |
| LMArena Multi-Turn | — | 1417 |

## FAQ

### Is Claude 2.1 better than Gemini 3.1 Flash Lite?

Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 24.9 on the Noometry Index.

### Is Claude 2.1 or Gemini 3.1 Flash Lite better for coding?

Gemini 3.1 Flash Lite scores higher on coding benchmarks: 37.5 versus 25.8 in the Noometry coding category.

### How many benchmarks do Claude 2.1 and Gemini 3.1 Flash Lite share?

6 benchmarks have published results for both models. Claude 2.1 has 7 scored results on Noometry and Gemini 3.1 Flash Lite has 38.