# Gemini 3.5 Flash vs Trinity Large Thinking

> Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 38.6 on the Noometry Index. Trinity Large Thinking costs 8.7× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gemini-3-5-flash-vs-trinity-large-thinking
- Last updated: 2026-10-11
- Shared benchmarks: 22

## Summary

- They share 22 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 8 categories and Trinity Large Thinking in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 16.9.
- The biggest single-benchmark swing is NYT Connections (extended): 92.6% for Gemini 3.5 Flash and 16.5% for Trinity Large Thinking.
- Trinity Large Thinking is cheaper at $0.25 / $0.80 per million input/output tokens, against $1.50 / $9 for Gemini 3.5 Flash.
- Gemini 3.5 Flash accepts more context: 1.05M tokens versus 262K.
- Trinity Large Thinking has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| Provider | Google | Arcee AI |
| Noometry Index | 54.2 | 38.6 |
| Rank | 32 | 185 |
| Context | 1.05M | 262K |
| Input $/M | $1.50 | $0.25 |
| Output $/M | $9 | $0.80 |
| Weights | Proprietary | Open |

## Coding

- Gemini 3.5 Flash: 49.4 (#49)
- Trinity Large Thinking: 34.1 (#244)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena WebDev | 1499 | 1238 |
| SciCode | 53.1% | 36.1% |
| LMArena Coding | 1492 | 1381 |
| SWE-bench Verified | 79.3% | — |
| DeepSWE | 37.4% | — |
| WeirdML | 62.6% | — |
| ALE-Bench | 911.02 | — |

## Agentic & Tool Use

- Gemini 3.5 Flash: 24.7 (#114)
- Trinity Large Thinking: —

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| APEX-Agents | 27.5% | — |
| GBAEval | 6.7% | — |
| GDP.pdf | 14% | — |
| Vending-Bench 2 | 5,396 | — |

## Reasoning

- Gemini 3.5 Flash: 62.8 (#18)
- Trinity Large Thinking: 16.9 (#298)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| NYT Connections (extended) | 92.6% | 16.5% |
| CritPt | 13.1% | 0.9% |
| LMArena Hard Prompts | 1488 | 1350 |
| Surface Evolver Bench | 58.1% | 15.6% |
| ARC-AGI-2 | 72.1% | — |
| SimpleBench | 76.7% | — |
| ARC-AGI-1 | 92.5% | — |
| Chess Puzzles | 50% | — |
| EnigmaEval | 25.4% | — |
| Thematic Generalization | — | 41.6% |
| EBR-Bench | 4.8% | — |
| Mystery Game Puzzles | 32% | — |
| DTBench | 94.7% | — |
| LMCA | 47.1% | — |
| Epoch Capabilities Index | 154.46 | — |
| ForecastBench | 59 | — |

## Math

- Gemini 3.5 Flash: 60.7 (#36)
- Trinity Large Thinking: 37.6 (#149)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Math | 1504 | 1366 |
| FrontierMath (Tiers 1-3) | 62.8% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.3% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 31% | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |

## Knowledge

- Gemini 3.5 Flash: 66.3 (#11)
- Trinity Large Thinking: 40.9 (#113)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Expert | 1495 | 1360 |
| GPQA Diamond | 92.8% | — |
| SimpleQA Verified | 66.2% | — |
| Vectara Hallucination Rate | — | 6.9% |

## Multimodal

- Gemini 3.5 Flash: 45.7 (#15)
- Trinity Large Thinking: —

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Vision | 1310 | — |
| Blueprint-Bench 2 | 33.6% | — |
| LMArena Document | 1463 | — |

## Multilingual

- Gemini 3.5 Flash: 57.0 (#13)
- Trinity Large Thinking: 46.2 (#160)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Non-English | 1476 | 1325 |
| LMArena Chinese | 1526 | 1373 |
| LMArena French | 1490 | 1374 |
| LMArena German | 1492 | 1356 |
| LMArena Japanese | 1486 | 1311 |
| LMArena Korean | 1451 | 1306 |
| LMArena Russian | 1493 | 1337 |
| LMArena Spanish | 1480 | 1357 |

## Instruction Following

- Gemini 3.5 Flash: 77.0 (#30)
- Trinity Large Thinking: 70.5 (#162)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Instruction Following | 1467 | 1334 |

## Long Context

- Gemini 3.5 Flash: 45.4 (#38)
- Trinity Large Thinking: 41.3 (#144)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Longer Query | 1482 | 1355 |

## Writing & Preference

- Gemini 3.5 Flash: 65.5 (#47)
- Trinity Large Thinking: 53.8 (#158)

| Benchmark | Gemini 3.5 Flash | Trinity Large Thinking |
|---|---|---|
| LMArena Text | 1482 | 1340 |
| LMArena Creative Writing | 1470 | 1320 |
| LMArena Multi-Turn | 1481 | 1342 |
| EQ-Bench 4 | 1087 | — |

## FAQ

### Is Gemini 3.5 Flash better than Trinity Large Thinking?

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 38.6 on the Noometry Index. Trinity Large Thinking costs 8.7× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.

### Which is cheaper, Gemini 3.5 Flash 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 3.5 Flash lists at $1.50 and $9.

### Is Gemini 3.5 Flash or Trinity Large Thinking better for coding?

Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 34.1 in the Noometry coding category.

### Which has the bigger context window?

Gemini 3.5 Flash does, with 1.05M tokens against 262K.

### How many benchmarks do Gemini 3.5 Flash and Trinity Large Thinking share?

22 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Trinity Large Thinking has 24.