# Gemini 3.5 Flash-Lite vs o4-mini

> Side-by-side benchmark comparison for Gemini 3.5 Flash-Lite and o4-mini across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-5-flash-lite-vs-o4-mini
- Last updated: October 19, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Gemini 3.5 Flash-Lite and o4-mini.

## Summary

- Gemini 3.5 Flash-Lite and o4-mini do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Gemini 3.5 Flash-Lite | o4-mini |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 200K |
| Independent public score (not head-to-head) | 49.61 | null |
| Benchmarks Covered | 12 | 7 |
| Pricing (input/output) | $0.30 / $2.50 | $1.10 / $4.40 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 35.6 (Supported · #81/130)
- o4-mini public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash-Lite | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 54.0% | Coming soon | Coming soon |
| OSWorld-Verified | 74% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 50.2% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 35.8 (Supported · #77/151)
- o4-mini public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash-Lite | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 54.0% | Coming soon | Coming soon |
| SWE-bench Pro | 54.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 79.0% | Coming soon | Coming soon |
| SWE-bench (Vals) | 75.0% | Coming soon | Coming soon |
| HumanEval | Coming soon | 97.3% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 70.9 (Unranked · 3 rankable rows)
- o4-mini public-lane score: 66.9 (Unranked · 3 rankable rows)

| Benchmark | Gemini 3.5 Flash-Lite | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 72.2% | Coming soon | Coming soon |
| DROP | Coming soon | 77.7% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 80.9 (Unranked · 1 rankable row)
- o4-mini public-lane score: 66.4 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 49.1 (Supported · #86/186)
- o4-mini public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash-Lite | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 83.8% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 85.8% | Coming soon | Coming soon |
| MMLU | Coming soon | 90% | Coming soon |
| GPQA | Coming soon | 77.6% | Coming soon |
| SimpleQA | Coming soon | 20.2% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: Coming soon
- o4-mini public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash-Lite | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| MGSM | Coming soon | 93.7% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: Coming soon
- o4-mini public-lane score: 83.9 (#53/148)

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 37.8 (Unranked · 2 rankable rows)
- o4-mini public-lane score: Coming soon

| Benchmark | Gemini 3.5 Flash-Lite | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 25.965% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 0.000% | Coming soon | Coming soon |
| MATH-500 | Coming soon | 97.5% | Coming soon |

## FAQ

### Can I compare Gemini 3.5 Flash-Lite and o4-mini on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Gemini 3.5 Flash-Lite vs o4-mini (high)](/compare/gemini-3-5-flash-lite-vs-o4-mini-high)
- [o4-mini vs o4-mini (high)](/compare/o4-mini-vs-o4-mini-high)
- [Gemini 3.5 Flash-Lite vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-5-flash-lite)
- [o4-mini vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-o4-mini)

## Explore More

- [Gemini 3.5 Flash-Lite profile](/models/gemini-3-5-flash-lite)
- [o4-mini profile](/models/o4-mini)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)