# Gemini 3.5 Flash-Lite vs GPT-5.2

> Side-by-side benchmark comparison for Gemini 3.5 Flash-Lite and GPT-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-5-flash-lite-vs-gpt-5-2
- Last updated: September 4, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 3.5 Flash-Lite and GPT-5.2 share only 2 sourced benchmark rows.

## Summary

- Only 2 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 3.5 Flash-Lite has the lower published output-token price.
- Gemini 3.5 Flash-Lite has the larger published context window at 1M.

## Model Snapshot

| Property | Gemini 3.5 Flash-Lite | GPT-5.2 |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 400K |
| Independent public score (not head-to-head) | 60.5 | 65.45 |
| Benchmarks Covered | 10 | 15 |
| Pricing (input/output) | $0.30 / $2.50 | $1.75 / $14.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 43.4 (Estimated · #104/151)
- GPT-5.2 public-lane score: 43 (Supported · #109/151)

| Benchmark | Gemini 3.5 Flash-Lite | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 54% | Coming soon | Coming soon |
| OSWorld-Verified | 74% | 47.3% | Gemini 3.5 Flash-Lite |
| Terminal-Bench 2.1 (Vals) | 50.2% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 65.8% | Coming soon |
| Gert Labs | Coming soon | 46.54% | Coming soon |
| JobBench | Coming soon | 34.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 43.6 (Supported · #121/183)
- GPT-5.2 public-lane score: 47.2 (Supported · #91/183)

| Benchmark | Gemini 3.5 Flash-Lite | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 54.0% | Coming soon | Coming soon |
| SWE-bench Pro | 54.2% | 55.6% | GPT-5.2 |
| LiveCodeBench (Vals) | 79.0% | Coming soon | Coming soon |
| SWE-bench (Vals) | 75.0% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 80% | Coming soon |
| Vibe Code Bench | Coming soon | 53.50% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 76.1 (#16/48)
- GPT-5.2 public-lane score: 65.6 (#23/48)

| Benchmark | Gemini 3.5 Flash-Lite | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 79.5% | Coming soon |
| MathVision | Coming soon | 83.0% | Coming soon |
| CharXiv | Coming soon | 82.1% | Coming soon |
| V* | Coming soon | 75.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 60.8 (Unranked · 3 rankable rows)
- GPT-5.2 public-lane score: 53.8 (Unranked · 3 rankable rows)

| Benchmark | Gemini 3.5 Flash-Lite | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 72.2% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 52.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: 53 (Supported · #71/181)
- GPT-5.2 public-lane score: 62 (Supported · #30/181)

| Benchmark | Gemini 3.5 Flash-Lite | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 83.8% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 85.8% | Coming soon | Coming soon |
| GPQA | Coming soon | 92.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: Coming soon
- GPT-5.2 public-lane score: 92.3 (#14/120)

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 3.5 Flash-Lite public-lane score: Coming soon
- GPT-5.2 public-lane score: 57.5 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.5 Flash-Lite | GPT-5.2 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 40.700% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 18.800% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemini 3.5 Flash-Lite and GPT-5.2?

Not yet. The models share only 2 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 3.5 Flash-Lite vs GPT-5.2 Pro](/compare/gemini-3-5-flash-lite-vs-gpt-5-2-pro)
- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Gemini 3.5 Flash-Lite vs GPT-5.2 Instant](/compare/gemini-3-5-flash-lite-vs-gpt-5-2-instant)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)

## Explore More

- [Gemini 3.5 Flash-Lite profile](/models/gemini-3-5-flash-lite)
- [GPT-5.2 profile](/models/gpt-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)