Model comparison
Gemini 3.1 Flash Lite vs Trinity Large Thinking
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 38.6 on the Noometry Index.
Last verified . 23 shared benchmarks.
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Arcee AISummary
- 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; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Gemini 3.1 Flash Lite leads 60.9 to 53.8.
- 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.
Side by side
| Gemini 3.1 Flash Lite | Trinity Large Thinking | |
|---|---|---|
| Provider | Arcee AI | |
| Noometry Index | 40.8 | 38.6 |
| Released | 2026-03-03 | 2026-04-01 |
| Weights | Proprietary | Open |
| Context window | 1.05M | 262K |
| Max output | 66K | 80K |
| Input $ / M tokens | $0.25 | $0.25 |
| Output $ / M tokens | $1.50 | $0.80 |
| Results tracked | 38 | 24 |
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Category by category
Coding Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 37.8 (#188), Trinity Large Thinking: 34.1 (#244)
| 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 Not comparable
Gemini 3.1 Flash Lite: 30.2 (#79), Trinity Large Thinking: —
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| DeepResearch Bench | 37.3% | — |
Reasoning Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 22.9 (#186), Trinity Large Thinking: 16.9 (#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 | 144.47 | — |
| ForecastBench | 54.4 | — |
Math Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 40.7 (#90), Trinity Large Thinking: 37.6 (#149)
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Math | 1428 | 1366 |
| FrontierMath (Tiers 1-3) | 27.7% | — |
| OTIS Mock AIME 2024-2025 | 80% | — |
Knowledge Too close to call
Gemini 3.1 Flash Lite: 41.9 (#104), Trinity Large Thinking: 40.9 (#113)
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| Vectara Hallucination Rate | 8.2% | 6.9% |
| LMArena Expert | 1398 | 1360 |
| GPQA Diamond | 81.8% | — |
| Humanity's Last Exam | 8.6% | — |
Multimodal Not comparable
Gemini 3.1 Flash Lite: 39.4 (#60), Trinity Large Thinking: —
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Vision | 1240 | — |
Multilingual Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 52.3 (#86), Trinity Large Thinking: 46.2 (#160)
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Non-English | 1411 | 1325 |
| LMArena Chinese | 1461 | 1373 |
| LMArena French | 1424 | 1374 |
| LMArena German | 1429 | 1356 |
| LMArena Japanese | 1413 | 1311 |
| LMArena Korean | 1392 | 1306 |
| LMArena Russian | 1420 | 1337 |
| LMArena Spanish | 1421 | 1357 |
Instruction Following Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 72.7 (#131), Trinity Large Thinking: 70.5 (#162)
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Instruction Following | 1377 | 1334 |
Long Context Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 42.5 (#122), Trinity Large Thinking: 41.3 (#144)
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Longer Query | 1394 | 1355 |
Writing & Preference Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 60.9 (#94), Trinity Large Thinking: 53.8 (#158)
| Benchmark | Gemini 3.1 Flash Lite | Trinity Large Thinking |
|---|---|---|
| LMArena Text | 1416 | 1340 |
| LMArena Creative Writing | 1401 | 1320 |
| LMArena Multi-Turn | 1417 | 1342 |
Frequently asked questions
Is Gemini 3.1 Flash Lite better than Trinity Large Thinking?
Gemini 3.1 Flash Lite is the stronger model overall, scoring 40.8 to 38.6 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: 37.8 versus 34.1 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.