Trinity Large Thinking vs Gemini 3.5 Flash Lite
Updated October 21, 2026. 38 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Pick Gemini 3.5 Flash Lite for coding: it scores 33.6 on the Vibe Coding Index against 5.4 for Trinity Large Thinking.
Pick Trinity Large Thinking when output tokens cost 3.1x less.
- Shared results
- 38
- Trinity Large Thinking only
- 14
- Gemini 3.5 Flash Lite only
- 45
- Like-for-like categories
- 7 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, four public coding benchmarks
Gemini 3.5 Flash Lite
Gemini 3.5 Flash Lite scores 33.6 against 5.4.
One benchmark behind each score
Intelligence
AA Intelligence Index
Gemini 3.5 Flash Lite
Gemini 3.5 Flash Lite leads, 22.2 against 10.8.
Same board, both measured
Agentic work
AA Agentic Index
Gemini 3.5 Flash Lite
Gemini 3.5 Flash Lite leads, 14.3 against 1.0.
Same board, both measured
Reasoning
GPQA Diamond
No call
Only Gemini 3.5 Flash Lite has a GPQA Diamond result, 83.8%.
Directional only
Knowledge
MMLU Pro
No call
Only Gemini 3.5 Flash Lite has a MMLU Pro result, 85.8%.
Directional only
Web design
Design Arena: websites
No call
Only Trinity Large Thinking has a Design Arena: websites result, 1137.
Directional only
Long documents
Listed context window
Gemini 3.5 Flash Lite
Gemini 3.5 Flash Lite takes 1.05M tokens against 262K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Trinity Large Thinking
Trinity Large Thinking $0.0006, Gemini 3.5 Flash Lite $0.0015 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Gemini 3.5 Flash Lite has the number, $0.41.
Directional only
At a glance
- Coding index
- Trinity Large Thinking 5.4 from 1 benchmark, Gemini 3.5 Flash Lite 33.6 from 1 benchmark.
- Widest category
- Coding, 18.8 points apart on average over 6 shared benchmarks.
- Widest single gap
- Long context reasoning (AA-LCR): Trinity Large Thinking 38.0% against Gemini 3.5 Flash Lite 76.0%, 38.0 points apart on a 0 to 100 scale.
- Output price
- Trinity Large Thinking $0.80 against Gemini 3.5 Flash Lite $2.50 per million output tokens, 3.1x apart.
- Context window
- Trinity Large Thinking takes 262K tokens, Gemini 3.5 Flash Lite 1.05M.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Trinity Large Thinking | Bars | Gemini 3.5 Flash Lite | Ties |
|---|---|---|---|---|
| Coding | 0 | 6 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 0 | 1 | ||
| Reasoning | 0 | 5 | ||
| Math | 0 | 2 | ||
| Knowledge | 0 | 5 | ||
| General | 0 | 18 | ||
| All shared boards | 0 | 38 |
CodingLike-for-likeFour of these boards feed the Vibe Coding Index06
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| LMArena WebDev | 1238 | 1435 | Gemini 3.5 Flash Lite |
| AA Coding Index | 25.8 | 49.3 | Gemini 3.5 Flash Lite |
| LiveCodeBench (Vals AI) | Not measured | 79.0% | Only Gemini 3.5 Flash Lite measured |
| SWE-bench Verified (Vals AI) | Not measured | 75.0% | Only Gemini 3.5 Flash Lite measured |
| Vibe Code Bench (Vals AI) | Not measured | 37.2% | Only Gemini 3.5 Flash Lite measured |
| Code migration (Vals AI) | Not measured | 6.2% | Only Gemini 3.5 Flash Lite measured |
| ProgramBench (Vals AI) | Not measured | 0.0% | Only Gemini 3.5 Flash Lite measured |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 50.2% | Only Gemini 3.5 Flash Lite measured |
| CyberBench (Vals AI) | Not measured | 59.1% | Only Gemini 3.5 Flash Lite measured |
| SciCode | 40.6% | 41.3% | Gemini 3.5 Flash Lite |
| Terminal-Bench Hard (Artificial Analysis run) | 22.7% | Not measured | Only Trinity Large Thinking measured |
| WeirdML | Not measured | 39.0% | Only Gemini 3.5 Flash Lite measured |
| ALE-Bench | Not measured | 765.3 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: coding | 1357 | 1453 | Gemini 3.5 Flash Lite |
| LMArena Text: software and IT | 1362 | 1451 | Gemini 3.5 Flash Lite |
| LMArena WebDev: React | 1231 | 1408 | Gemini 3.5 Flash Lite |
| LMArena WebDev: HTML | 1240 | Not measured | Only Trinity Large Thinking measured |
| LMArena WebDev: from an image | Not measured | 1448 | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 20 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| AA Intelligence Index | 10.8 | 22.2 | Gemini 3.5 Flash Lite |
| Epoch Capabilities Index | Not measured | 144.9 | Only Gemini 3.5 Flash Lite measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| AA Agentic Index | 1.0 | 14.3 | Gemini 3.5 Flash Lite |
| Finance Agent (Vals AI) | Not measured | 47.4% | Only Gemini 3.5 Flash Lite measured |
| Tax Agent Bench (Vals AI) | Not measured | 7.2% | Only Gemini 3.5 Flash Lite measured |
| Legal Research Bench (Vals AI) | Not measured | 13.9% | Only Gemini 3.5 Flash Lite measured |
| Excel Modeling Benchmark (Vals AI) | Not measured | 43.2% | Only Gemini 3.5 Flash Lite measured |
| τ²-Bench Telecom | 90.1% | Not measured | Only Trinity Large Thinking measured |
| APEX-Agents | Not measured | 29.3% | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 32 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index05
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 83.8% | Only Gemini 3.5 Flash Lite measured |
| MMMU Pro (Vals AI) | Not measured | 83.6% | Only Gemini 3.5 Flash Lite measured |
| GPQA Diamond (Artificial Analysis run) | 75.2% | 83.8% | Gemini 3.5 Flash Lite |
| Humanity's Last Exam (Artificial Analysis run) | 15.8% | 18.8% | Gemini 3.5 Flash Lite |
| GPQA Diamond (Epoch AI run) | Not measured | 83.3% | Only Gemini 3.5 Flash Lite measured |
| ARC-AGI | Not measured | 53.5% | Only Gemini 3.5 Flash Lite measured |
| ARC-AGI-2 | Not measured | 10.3% | Only Gemini 3.5 Flash Lite measured |
| Chess puzzles | Not measured | 21.0% | Only Gemini 3.5 Flash Lite measured |
| Mystery game puzzles | Not measured | 19.0% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: hard prompts | 1342 | 1441 | Gemini 3.5 Flash Lite |
| LMArena Text: expert | 1359 | 1434 | Gemini 3.5 Flash Lite |
| LMArena Text: hard prompts in English | 1356 | 1440 | Gemini 3.5 Flash Lite |
| LMArena Vision: diagrams | Not measured | 1284 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: homework | Not measured | 1291 | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 7 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| OTIS Mock AIME | Not measured | 71.1% | Only Gemini 3.5 Flash Lite measured |
| FrontierMath, tiers 1 to 3 | Not measured | 26.0% | Only Gemini 3.5 Flash Lite measured |
| FrontierMath, tier 4 | Not measured | 0.0% | Only Gemini 3.5 Flash Lite measured |
| ProofBench | Not measured | 13.0% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: math | 1365 | 1434 | Gemini 3.5 Flash Lite |
| LMArena Text: mathematical work | 1350 | 1433 | Gemini 3.5 Flash Lite |
| Neither model has a result on the other 7 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index05
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 85.8% | Only Gemini 3.5 Flash Lite measured |
| LegalBench (Vals AI) | Not measured | 84.1% | Only Gemini 3.5 Flash Lite measured |
| CaseLaw (Vals AI) | 57.9% | Not measured | Only Trinity Large Thinking measured |
| CorpFin (Vals AI) | 54.7% | 60.7% | Gemini 3.5 Flash Lite |
| TaxEval (Vals AI) | Not measured | 72.6% | Only Gemini 3.5 Flash Lite measured |
| MortgageTax (Vals AI) | Not measured | 68.7% | Only Gemini 3.5 Flash Lite measured |
| MedCode (Vals AI) | Not measured | 43.5% | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: science | 1355 | 1451 | Gemini 3.5 Flash Lite |
| LMArena Text: medicine and healthcare | 1349 | 1438 | Gemini 3.5 Flash Lite |
| LMArena Text: legal and government | 1345 | 1431 | Gemini 3.5 Flash Lite |
| LMArena Text: business and finance | 1329 | 1423 | Gemini 3.5 Flash Lite |
| Neither model has a result on the other 6 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| Design Arena: websites | 1137 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: UI components | 1045 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: game dev | 1079 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: data viz | 1098 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: 3D | 1082 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: all code categories | 1117 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: SVG | 1016 | Not measured | Only Trinity Large Thinking measured |
| Design Arena: ASCII art | 1041 | Not measured | Only Trinity Large Thinking measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index018
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| Public Benefits Bench (Vals AI) | Not measured | 51.8% | Only Gemini 3.5 Flash Lite measured |
| SAGE (Vals AI) | Not measured | 47.3% | Only Gemini 3.5 Flash Lite measured |
| MedScribe (Vals AI) | Not measured | 70.9% | Only Gemini 3.5 Flash Lite measured |
| IFBench | 56.3% | Not measured | Only Trinity Large Thinking measured |
| Long context reasoning (AA-LCR) | 38.0% | 76.0% | Gemini 3.5 Flash Lite |
| DTBench | Not measured | 83.5% | Only Gemini 3.5 Flash Lite measured |
| LMCA | Not measured | 37.6% | Only Gemini 3.5 Flash Lite measured |
| Surface Evolver Bench | 15.6% | Not measured | Only Trinity Large Thinking measured |
| LMArena Text | 1340 | 1435 | Gemini 3.5 Flash Lite |
| LMArena Text: instruction following | 1326 | 1419 | Gemini 3.5 Flash Lite |
| LMArena Text: creative writing | 1308 | 1421 | Gemini 3.5 Flash Lite |
| LMArena Vision | Not measured | 1269 | Only Gemini 3.5 Flash Lite measured |
| LMArena Text: English | 1356 | 1438 | Gemini 3.5 Flash Lite |
| LMArena Text: non-English | 1325 | 1427 | Gemini 3.5 Flash Lite |
| LMArena Text: Chinese | 1371 | 1468 | Gemini 3.5 Flash Lite |
| LMArena Text: German | 1356 | 1454 | Gemini 3.5 Flash Lite |
| LMArena Text: Japanese | 1312 | 1426 | Gemini 3.5 Flash Lite |
| LMArena Text: Korean | 1306 | 1407 | Gemini 3.5 Flash Lite |
| LMArena Text: French | 1366 | 1451 | Gemini 3.5 Flash Lite |
| LMArena Text: Spanish | 1327 | 1441 | Gemini 3.5 Flash Lite |
| LMArena Text: Russian | 1338 | 1443 | Gemini 3.5 Flash Lite |
| LMArena Text: Polish | 1312 | 1437 | Gemini 3.5 Flash Lite |
| LMArena Text: multi-turn | 1320 | 1445 | Gemini 3.5 Flash Lite |
| LMArena Text: longer queries | 1318 | 1435 | Gemini 3.5 Flash Lite |
| LMArena Text: writing and language | 1317 | 1428 | Gemini 3.5 Flash Lite |
| LMArena Text: entertainment and media | 1296 | 1414 | Gemini 3.5 Flash Lite |
| LMArena Vision: English | Not measured | 1269 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: Chinese | Not measured | 1311 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: reading text | Not measured | 1280 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: humor | Not measured | 1287 | Only Gemini 3.5 Flash Lite measured |
| LMArena Vision: creative writing | Not measured | 1260 | Only Gemini 3.5 Flash Lite measured |
| Neither model has a result on the other 15 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Trinity Large Thinking | Gemini 3.5 Flash Lite | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Trinity Large Thinking costs less
Repository review
50K input + 3K output tokens
Trinity Large Thinking costs less
Agent loop
200K input + 10K output tokens
Trinity Large Thinking costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Arcee AI Trinity Large Thinking | Google Gemini 3.5 Flash Lite |
|---|---|---|
| Maker | Arcee AI | |
| Weights | Open weights | No public weights listed |
| Released | April 1, 2026 | July 21, 2026 |
| Context window | 262K | 1.05M |
| Input $/Mtok | $0.25 | $0.30 |
| Output $/Mtok | $0.80 | $2.50 |
| Coding index | 5.4 | 33.6 |
| Independent measurements behind it | 1 | 1 |
| Cost per solved task | Not computable | $0.41 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Trinity Large Thinking better than Gemini 3.5 Flash Lite for coding?
Pick Gemini 3.5 Flash Lite for coding: it scores 33.6 on the Vibe Coding Index against 5.4 for Trinity Large Thinking. Pick Trinity Large Thinking when output tokens cost 3.1x less.
Which is cheaper, Trinity Large Thinking or Gemini 3.5 Flash Lite?
Trinity Large Thinking costs $0.25 per million input tokens and $0.80 per million output tokens; Gemini 3.5 Flash Lite costs $0.30 and $2.50. Cost per solved task is known for Gemini 3.5 Flash Lite only.
Which has the bigger context window, Trinity Large Thinking or Gemini 3.5 Flash Lite?
Gemini 3.5 Flash Lite, with 1.05M tokens against 262K.
How many benchmarks is the Trinity Large Thinking vs Gemini 3.5 Flash Lite comparison based on?
38 benchmarks have a result for both models as of October 21, 2026. Trinity Large Thinking's coding index rests on 1 independent benchmark and Gemini 3.5 Flash Lite's on 1. Where only one model has a result, the page says so instead of naming a winner.