# Gemini 3.1 Flash-Lite vs Gemini 3.5 Flash

> Side-by-side benchmark comparison for Gemini 3.1 Flash-Lite and Gemini 3.5 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-flash-lite-vs-gemini-3-5-flash
- Last updated: October 2, 2026

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

## Quick Verdict

Gemini 3.5 Flash leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Gemini 3.5 Flash has the higher overall point estimate 63.95 to 49.51. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in multimodal & grounded, where the averages are 38.5 for Gemini 3.1 Flash-Lite and 87.8 for Gemini 3.5 Flash.
- The biggest single benchmark swing is Vibe Code Bench in Coding, with scores of 0.00% and 48.68%.
- Gemini 3.1 Flash-Lite is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash |
|----------|----------|----------|
| Creator | Google | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 49.51 | 63.95 |
| Benchmarks Covered | 10 | 27 |
| Pricing (input/output) | $0.25 / $1.50 | $1.50 / $9.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Gemini 3.1 Flash-Lite public-lane score: 27.8 (Estimated · #88/119)
- Gemini 3.5 Flash public-lane score: 50.7 (Supported · #42/119)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 38.46% | 61.85% | Gemini 3.5 Flash |
| Terminal-Bench 2.1 (Vals) | 34.1% | 74.2% | Gemini 3.5 Flash |
| Terminal-Bench 2.1 | Coming soon | 76.2% | Coming soon |
| MCP Atlas | Coming soon | 83.6% | Coming soon |
| Toolathlon | Coming soon | 56.5% | Coming soon |
| OSWorld-Verified | Coming soon | 78.4% | Coming soon |
| Finance Agent v2 | Coming soon | 57.9% | Coming soon |
| ResearchClawBench | Coming soon | 18.0% | Coming soon |

### Coding

- Winner: Directional only
- Gemini 3.1 Flash-Lite public-lane score: 26.3 (Estimated · #103/144)
- Gemini 3.5 Flash public-lane score: 52.3 (Supported · #39/144)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 0.00% | 48.68% | Gemini 3.5 Flash |
| LiveCodeBench (Vals) | 80.1% | 87.6% | Gemini 3.5 Flash |
| SWE-bench (Vals) | 62.8% | 78.8% | Gemini 3.5 Flash |
| Terminal-Bench 2.1 | Coming soon | 76.2% | Coming soon |
| SWE-bench Pro | Coming soon | 55.1% | Coming soon |
| cursorBench31 | Coming soon | 49.8% | Coming soon |
| CursorBench 3.2 | Coming soon | 48.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 62.8 (#20/27)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | 14.26 | Coming soon | Coming soon |
| JevBench 1.5 | 19.58 | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 77.3% | Coming soon |
| MRCR 1M | Coming soon | 26.6% | Coming soon |
| ARC-AGI-2 | Coming soon | 72.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 3.1 Flash-Lite public-lane score: 38.5 (Unranked · 1 rankable row)
- Gemini 3.5 Flash public-lane score: 87.8 (#6/49)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 73.2% | 84.2% | Gemini 3.5 Flash |
| MMMU-Pro | Coming soon | 83.6% | Coming soon |
| Blueprint-Bench 2 | Coming soon | 33.6% | Coming soon |

### Knowledge

- Winner: Directional only
- Gemini 3.1 Flash-Lite public-lane score: 47 (Estimated · #79/171)
- Gemini 3.5 Flash public-lane score: 64 (Supported · #30/171)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 81.1% | 92.7% | Gemini 3.5 Flash |
| MMLU-Pro (Vals) | 86.2% | 89.5% | Gemini 3.5 Flash |
| GPQA-D | Coming soon | 92.7% | Coming soon |
| HLE | Coming soon | 40.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 84.1 (#43/125)

### Mathematics

- Winner: Not comparable
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- Gemini 3.5 Flash public-lane score: 55.1 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 38.966% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.583% | Coming soon |

## FAQ

### Which is better overall, Gemini 3.1 Flash-Lite or Gemini 3.5 Flash?

Gemini 3.5 Flash has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Gemini 3.1 Flash-Lite and Gemini 3.5 Flash?

The widest category gap is in multimodal & grounded, where the averages are 38.5 for Gemini 3.1 Flash-Lite and 87.8 for Gemini 3.5 Flash.

### How many benchmarks does Gemini 3.1 Flash-Lite cover on BenchLM?

Gemini 3.1 Flash-Lite currently has 10 sourced benchmark scores on BenchLM.

### How many benchmarks does Gemini 3.5 Flash cover on BenchLM?

Gemini 3.5 Flash currently has 27 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.1 Flash-Lite vs Gemini 3.5 Flash Cyber](/compare/gemini-3-1-flash-lite-vs-gemini-3-5-flash-cyber)
- [Gemini 3.5 Flash vs Gemini 3.5 Flash Cyber](/compare/gemini-3-5-flash-vs-gemini-3-5-flash-cyber)
- [Gemini 3.1 Flash-Lite vs GPT-6 Astra](/compare/gemini-3-1-flash-lite-vs-gpt-6-astra)
- [Gemini 3.5 Flash vs GPT-6 Astra](/compare/gemini-3-5-flash-vs-gpt-6-astra)

## Explore More

- [Gemini 3.1 Flash-Lite profile](/models/gemini-3-1-flash-lite)
- [Gemini 3.5 Flash profile](/models/gemini-3-5-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)