# Gemini 3.1 Flash-Lite vs Gemini 3 Pro

> Side-by-side benchmark comparison for Gemini 3.1 Flash-Lite and Gemini 3 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-flash-lite-vs-gemini-3-pro
- Last updated: October 17, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 3.1 Flash-Lite and Gemini 3 Pro share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Gemini 3.1 Flash-Lite has the lower published output-token price.
- Gemini 3 Pro has the larger published context window at 2M.

## Model Snapshot

| Property | Gemini 3.1 Flash-Lite | Gemini 3 Pro |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 1M | 2M |
| Independent public score (not head-to-head) | 46.96 | 61.18 |
| Benchmarks Covered | 11 | 27 |
| Pricing (input/output) | $0.25 / $1.50 | $2.00 / $12.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 27.4 (Estimated · #100/128)
- Gemini 3 Pro public-lane score: Coming soon

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 38.46% | 63.23% | Gemini 3 Pro |
| Terminal-Bench 2.1 (Vals) | 34.1% | Coming soon | Coming soon |
| JobBench | Coming soon | 11.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 27.2 (Estimated · #101/150)
- Gemini 3 Pro public-lane score: 43 (Estimated · #59/150)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 0.00% | 14.30% | Gemini 3 Pro |
| LiveCodeBench (Vals) | 80.1% | Coming soon | Coming soon |
| SWE-bench (Vals) | 62.8% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Gemini 3 Pro public-lane score: 50.1 (Unranked · 4 rankable rows)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | 14.26 | Coming soon | Coming soon |
| JevBench 1.5 | 19.58 | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 31.1% | Coming soon |
| ARC-AGI-1 | Coming soon | 75.00% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 42 (Unranked · 1 rankable row)
- Gemini 3 Pro public-lane score: 80 (#18/54)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 73.2% | 81.4% | Gemini 3 Pro |
| MMMU | Coming soon | 87.2% | Coming soon |
| MMMU-Pro | Coming soon | 81% | Coming soon |
| RealWorldQA | Coming soon | 83.3% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 88.5% | Coming soon |
| Video-MME (with subtitle) | Coming soon | 88.4% | Coming soon |
| Video-MME (w/o subtitle) | Coming soon | 87.7% | Coming soon |
| MathVision | Coming soon | 86.6% | Coming soon |
| We-Math | Coming soon | 86.9% | Coming soon |
| DynaMath | Coming soon | 85.1% | Coming soon |
| SimpleVQA | Coming soon | 73.2% | Coming soon |
| MMLongBench-Doc | Coming soon | 60.5% | Coming soon |
| CC-OCR | Coming soon | 79.0% | Coming soon |
| AI2D_TEST | Coming soon | 94.1% | Coming soon |
| CountBench | Coming soon | 97.3% | Coming soon |
| RefCOCO (avg) | Coming soon | 84.1% | Coming soon |
| ODINW13 | Coming soon | 46.3% | Coming soon |
| ERQA | Coming soon | 70.5% | Coming soon |
| VideoMMMU | Coming soon | 87.6% | Coming soon |
| MLVU (M-Avg) | Coming soon | 83.0% | Coming soon |
| ScreenSpot Pro | Coming soon | 72.7% | Coming soon |
| V* | Coming soon | 88.0% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 46.9 (Estimated · #89/184)
- Gemini 3 Pro public-lane score: 60.8 (Estimated · #47/184)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 81.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.2% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Gemini 3 Pro public-lane score: 86.1 (#45/148)

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 3.1 Flash-Lite public-lane score: 44 (Unranked · 1 rankable row)
- Gemini 3 Pro public-lane score: Coming soon

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 27.719% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemini 3.1 Flash-Lite and Gemini 3 Pro?

Not yet. The models share only 3 sourced benchmark rows, 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 Gemini 3 Pro Deep Think](/compare/gemini-3-1-flash-lite-vs-gemini-3-pro-deep-think)
- [Gemini 3 Pro vs Gemini 3 Pro Deep Think](/compare/gemini-3-pro-vs-gemini-3-pro-deep-think)
- [Gemini 3.1 Flash-Lite vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-1-flash-lite)
- [Gemini 3 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-pro)

## Explore More

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