# Gemini 3.1 Flash Lite vs Trinity Large Thinking

> Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 38.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-1-flash-lite-vs-trinity-large-thinking
- Last updated: 2026-10-10
- Shared benchmarks: 23

## Summary

- They share 23 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 8 categories and Trinity Large Thinking in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Gemini 3.1 Flash Lite leads 61.0 to 54.0.
- The biggest single-benchmark swing is Thematic Generalization: 63.3% for Gemini 3.1 Flash Lite and 41.6% for Trinity Large Thinking.
- Trinity Large Thinking is cheaper at $0.25 / $0.80 per million input/output tokens, against $0.25 / $1.50 for Gemini 3.1 Flash Lite.
- Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 262K.
- Trinity Large Thinking has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| Provider | Google | Arcee AI |
| Noometry Index | 40.4 | 38.1 |
| Rank | 141 | 180 |
| Context | 1.05M | 262K |
| Input $/M | $0.25 | $0.25 |
| Output $/M | $1.50 | $0.80 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3.1 Flash Lite: 37.5 (#179)
- Trinity Large Thinking: 33.8 (#238)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena WebDev | 1256 | 1238 |
| SciCode | 41.9% | 36.1% |
| LMArena Coding | 1400 | 1381 |
| WeirdML | 52.2% | — |
| ALE-Bench | 797.73 | — |

## Agentic & Tool Use

- Gemini 3.1 Flash Lite: 29.9 (#72)
- Trinity Large Thinking: —

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| DeepResearch Bench | 37.3% | — |

## Reasoning

- Gemini 3.1 Flash Lite: 22.3 (#181)
- Trinity Large Thinking: 16.3 (#298)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| NYT Connections (extended) | 8.2% | 16.5% |
| CritPt | 1.1% | 0.9% |
| Thematic Generalization | 63.3% | 41.6% |
| LMArena Hard Prompts | 1407 | 1350 |
| Kagi LLM Benchmark | 67.2% | — |
| Chess Puzzles | 25% | — |
| EnigmaEval | 3% | — |
| DTBench | 76.8% | — |
| LMCA | 35% | — |
| Surface Evolver Bench | — | 15.6% |
| Epoch Capabilities Index | 144.45 | — |
| ForecastBench | 54.4 | — |

## Math

- Gemini 3.1 Flash Lite: 39.5 (#82)
- Trinity Large Thinking: 34.9 (#149)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Math | 1427 | 1366 |
| FrontierMath (Tiers 1-3) | 27.7% | — |
| OTIS Mock AIME 2024-2025 | 80% | — |

## Knowledge

- Gemini 3.1 Flash Lite: 41.7 (#95)
- Trinity Large Thinking: 40.3 (#107)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| Vectara Hallucination Rate | 8.2% | 6.9% |
| LMArena Expert | 1397 | 1359 |
| GPQA Diamond | 81.8% | — |
| Humanity's Last Exam | 8.6% | — |

## Multimodal

- Gemini 3.1 Flash Lite: 38.7 (#57)
- Trinity Large Thinking: —

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Vision | 1240 | — |

## Multilingual

- Gemini 3.1 Flash Lite: 52.5 (#82)
- Trinity Large Thinking: 46.4 (#155)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Non-English | 1410 | 1325 |
| LMArena Chinese | 1461 | 1372 |
| LMArena French | 1423 | 1374 |
| LMArena German | 1429 | 1356 |
| LMArena Japanese | 1411 | 1312 |
| LMArena Korean | 1393 | 1304 |
| LMArena Russian | 1420 | 1338 |
| LMArena Spanish | 1420 | 1356 |

## Instruction Following

- Gemini 3.1 Flash Lite: 72.9 (#126)
- Trinity Large Thinking: 70.7 (#157)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Instruction Following | 1376 | 1334 |

## Long Context

- Gemini 3.1 Flash Lite: 42.5 (#117)
- Trinity Large Thinking: 41.2 (#139)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Longer Query | 1394 | 1355 |

## Writing & Preference

- Gemini 3.1 Flash Lite: 61.0 (#90)
- Trinity Large Thinking: 54.0 (#152)

| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Text | 1416 | 1340 |
| LMArena Creative Writing | 1401 | 1321 |
| LMArena Multi-Turn | 1417 | 1342 |

## FAQ

### Is Gemini 3.1 Flash Lite better than Trinity Large Thinking?

Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.4 to 38.1 on the Noometry Index.

### Which is cheaper, Gemini 3.1 Flash Lite or Trinity Large Thinking?

Trinity Large Thinking is cheaper. It lists at $0.25 per million input tokens and $0.80 per million output tokens; Gemini 3.1 Flash Lite lists at $0.25 and $1.50.

### Is Gemini 3.1 Flash Lite or Trinity Large Thinking better for coding?

Gemini 3.1 Flash Lite scores higher on coding benchmarks: 37.5 versus 33.8 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3.1 Flash Lite does, with 1.05M tokens against 262K.

### How many benchmarks do Gemini 3.1 Flash Lite and Trinity Large Thinking share?

23 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Trinity Large Thinking has 24.