# Gemini 3.1 Flash-Lite vs GPT-5.4 nano

> Side-by-side benchmark comparison for Gemini 3.1 Flash-Lite and GPT-5.4 nano across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-flash-lite-vs-gpt-5-4-nano
- Last updated: September 10, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick GPT-5.4 nano if you want the stronger benchmark profile. Gemini 3.1 Flash-Lite only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.4 nano leads overall 59.57 to 56.19.
- The clearest category separation is in multimodal & grounded, where the averages are 37.5 for Gemini 3.1 Flash-Lite and 23.8 for GPT-5.4 nano.
- The biggest single benchmark swing is Vibe Code Bench in Coding, with scores of 0.00% and 26.10%.
- GPT-5.4 nano is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.1 Flash-Lite also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.1 Flash-Lite | GPT-5.4 nano |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 400K |
| Overall Score | 56.19 | 59.57 |
| Benchmarks Covered | 8 | 18 |
| Pricing (input/output) | $0.25 / $1.50 | $0.20 / $1.25 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 42.9 (Estimated · #101/152)
- GPT-5.4 nano public-lane score: 34.6 (Supported · #133/152)

| Benchmark | Gemini 3.1 Flash-Lite | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 38.46% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 34.1% | 41.6% | GPT-5.4 nano |
| Terminal-Bench 2.0 | Coming soon | 46.3% | Coming soon |
| OSWorld-Verified | Coming soon | 39% | Coming soon |
| MCP Atlas | Coming soon | 56.1% | Coming soon |
| Toolathlon | Coming soon | 35.5% | Coming soon |
| τ²-bench results | Coming soon | 92.5% | Coming soon |

### Coding

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 37.9 (Estimated · #124/151)
- GPT-5.4 nano public-lane score: 37.1 (Supported · #126/151)

| Benchmark | Gemini 3.1 Flash-Lite | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 0.00% | 26.10% | GPT-5.4 nano |
| LiveCodeBench (Vals) | 80.1% | 84.0% | GPT-5.4 nano |
| SWE-bench (Vals) | 62.8% | 69.8% | GPT-5.4 nano |

### Multimodal & Grounded

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 37.5 (Unranked · 1 rankable row)
- GPT-5.4 nano public-lane score: 23.8 (#45/48)

| Benchmark | Gemini 3.1 Flash-Lite | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 73.2% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 66.1% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 69.5% | Coming soon |

### Reasoning

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- GPT-5.4 nano public-lane score: 73.7 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 51.5 (Estimated · #71/183)
- GPT-5.4 nano public-lane score: 47.4 (Supported · #97/183)

| Benchmark | Gemini 3.1 Flash-Lite | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 81.1% | 77.5% | Gemini 3.1 Flash-Lite |
| MMLU-Pro (Vals) | 86.2% | 77.2% | Gemini 3.1 Flash-Lite |
| GPQA | Coming soon | 82.8% | Coming soon |
| HLE | Coming soon | 37.7% | Coming soon |
| HLE w/o tools | Coming soon | 24.3% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- GPT-5.4 nano public-lane score: 93.2 (#9/123)

### Mathematics

- Winner: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: Coming soon
- GPT-5.4 nano public-lane score: 43.9 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.1 Flash-Lite | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 25.860% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 6.250% | Coming soon |

## FAQ

### Which is better overall, Gemini 3.1 Flash-Lite or GPT-5.4 nano?

GPT-5.4 nano is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.1 Flash-Lite and GPT-5.4 nano?

The widest category gap is in multimodal & grounded, where the averages are 37.5 for Gemini 3.1 Flash-Lite and 23.8 for GPT-5.4 nano.

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

Gemini 3.1 Flash-Lite currently has 8 sourced benchmark scores on BenchLM.

### How many benchmarks does GPT-5.4 nano cover on BenchLM?

GPT-5.4 nano currently has 18 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.1 Flash-Lite vs GPT-5.4](/compare/gemini-3-1-flash-lite-vs-gpt-5-4)
- [GPT-5.4 nano vs GPT-5.4](/compare/gpt-5-4-vs-gpt-5-4-nano)
- [Gemini 3.1 Flash-Lite vs GPT-5.4 mini](/compare/gemini-3-1-flash-lite-vs-gpt-5-4-mini)
- [GPT-5.4 nano vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-gpt-5-4-nano)

## Explore More

- [Gemini 3.1 Flash-Lite profile](/models/gemini-3-1-flash-lite)
- [GPT-5.4 nano profile](/models/gpt-5-4-nano)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)