# Gemini 3.1 Flash-Lite vs Trinity-Large-Thinking

> Side-by-side benchmark comparison for Gemini 3.1 Flash-Lite and Trinity-Large-Thinking across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-flash-lite-vs-trinity-large-thinking
- Last updated: September 29, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 3.1 Flash-Lite and Trinity-Large-Thinking share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Trinity-Large-Thinking has the lower published output-token price.
- Gemini 3.1 Flash-Lite has the larger published context window at 1M.

## Model Snapshot

| Property | Gemini 3.1 Flash-Lite | Trinity-Large-Thinking |
|----------|----------|----------|
| Creator | Google | Arcee AI |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 512K |
| Independent public score (not head-to-head) | 50.03 | 34.23 |
| Benchmarks Covered | 8 | 5 |
| Pricing (input/output) | $0.25 / $1.50 | $0.25 / $0.90 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 29.7 (Estimated · #80/117)
- Trinity-Large-Thinking public-lane score: 17.7 (Estimated · #104/117)

| Benchmark | Gemini 3.1 Flash-Lite | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 38.46% | 32.55% | Gemini 3.1 Flash-Lite |
| Terminal-Bench 2.1 (Vals) | 34.1% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 27.5 (Estimated · #98/142)
- Trinity-Large-Thinking public-lane score: 21 (Supported · #119/142)

| Benchmark | Gemini 3.1 Flash-Lite | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 0.00% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 80.1% | Coming soon | Coming soon |
| SWE-bench (Vals) | 62.8% | Coming soon | Coming soon |
| SWE-bench Verified* | Coming soon | 63.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 48.3 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 38.5 (Unranked · 1 rankable row)
- Trinity-Large-Thinking public-lane score: Coming soon

| Benchmark | Gemini 3.1 Flash-Lite | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 73.2% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 47.8 (Estimated · #71/168)
- Trinity-Large-Thinking public-lane score: 35.9 (Estimated · #114/168)

| Benchmark | Gemini 3.1 Flash-Lite | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 81.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.2% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 76.3% | Coming soon |
| MMLU-Pro (Arcee) | Coming soon | 83.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 66.3 (#68/124)

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: Coming soon

| Benchmark | Gemini 3.1 Flash-Lite | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | Coming soon | 96.3% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemini 3.1 Flash-Lite and Trinity-Large-Thinking?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Gemini 3.1 Flash-Lite vs Trinity-Large-Preview](/compare/gemini-3-1-flash-lite-vs-trinity-large-preview)
- [Trinity-Large-Thinking vs Trinity-Large-Preview](/compare/trinity-large-preview-vs-trinity-large-thinking)
- [Gemini 3.1 Flash-Lite vs GPT-6 Astra](/compare/gemini-3-1-flash-lite-vs-gpt-6-astra)
- [Trinity-Large-Thinking vs GPT-6 Astra](/compare/gpt-6-astra-vs-trinity-large-thinking)

## Explore More

- [Gemini 3.1 Flash-Lite profile](/models/gemini-3-1-flash-lite)
- [Trinity-Large-Thinking profile](/models/trinity-large-thinking)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)