# Gemini 3.6 Flash vs GPT-5.4 mini

> Side-by-side benchmark comparison for Gemini 3.6 Flash and GPT-5.4 mini across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-6-flash-vs-gpt-5-4-mini
- Last updated: September 4, 2026

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

## Quick Verdict

Pick Gemini 3.6 Flash if you want the stronger benchmark profile. GPT-5.4 mini only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Gemini 3.6 Flash leads overall 70.11 to 62.63.
- The clearest category separation is in multimodal & grounded, where the averages are 82.3 for Gemini 3.6 Flash and 56.6 for GPT-5.4 mini.
- The biggest single benchmark swing is Terminal-Bench 2.1 (Vals) in Agentic, with scores of 73.8% and 54.7%.
- GPT-5.4 mini is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.6 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.6 Flash | GPT-5.4 mini |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 400K |
| Overall Score | 70.11 | 62.63 |
| Benchmarks Covered | 8 | 19 |
| Pricing (input/output) | $1.50 / $7.50 | $0.75 / $4.50 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Gemini 3.6 Flash public-lane score: 50.7 (Supported · #60/151)
- GPT-5.4 mini public-lane score: 42.4 (Estimated · #113/151)

| Benchmark | Gemini 3.6 Flash | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| OSWorld-Verified | 83% | 72.1% | Gemini 3.6 Flash |
| Terminal-Bench 2.1 (Vals) | 73.8% | 54.7% | Gemini 3.6 Flash |
| Terminal-Bench 2.0 | Coming soon | 60% | Coming soon |
| MCP Atlas | Coming soon | 57.7% | Coming soon |
| Toolathlon | Coming soon | 42.9% | Coming soon |
| τ²-bench results | Coming soon | 93.4% | Coming soon |

### Coding

- Winner: Gemini 3.6 Flash
- Gemini 3.6 Flash public-lane score: 58.9 (Supported · #30/183)
- GPT-5.4 mini public-lane score: 42.9 (Supported · #125/183)

| Benchmark | Gemini 3.6 Flash | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| deepSwe | 49% | Coming soon | Coming soon |
| cursorBench32 | 53.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.1% | 81.5% | Gemini 3.6 Flash |
| SWE-bench (Vals) | 79.6% | 73.0% | Gemini 3.6 Flash |
| Vibe Code Bench | Coming soon | 47.97% | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 27.0% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Gemini 3.6 Flash public-lane score: 82.3 (Unranked · 1 rankable row)
- GPT-5.4 mini public-lane score: 56.6 (#32/48)

| Benchmark | Gemini 3.6 Flash | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 76.6% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 78% | Coming soon |

### Reasoning

- Winner: Coming soon
- Gemini 3.6 Flash public-lane score: 77.8 (Unranked · 2 rankable rows)
- GPT-5.4 mini public-lane score: 73.5 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Gemini 3.6 Flash
- Gemini 3.6 Flash public-lane score: 68.6 (Supported · #18/181)
- GPT-5.4 mini public-lane score: 56.4 (Supported · #53/181)

| Benchmark | Gemini 3.6 Flash | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 93.4% | 83.1% | Gemini 3.6 Flash |
| MMLU-Pro (Vals) | 89.3% | 84.6% | Gemini 3.6 Flash |
| GPQA | Coming soon | 88% | Coming soon |
| HLE | Coming soon | 41.5% | Coming soon |
| HLE w/o tools | Coming soon | 28.2% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Gemini 3.6 Flash public-lane score: Coming soon
- GPT-5.4 mini public-lane score: 89.6 (#23/120)

### Mathematics

- Winner: Coming soon
- Gemini 3.6 Flash public-lane score: Coming soon
- GPT-5.4 mini public-lane score: 44.5 (Unranked · 2 rankable rows)

| Benchmark | Gemini 3.6 Flash | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 28.280% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 2.080% | Coming soon |

## FAQ

### Which is better overall, Gemini 3.6 Flash or GPT-5.4 mini?

Gemini 3.6 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.6 Flash and GPT-5.4 mini?

The widest category gap is in multimodal & grounded, where the averages are 82.3 for Gemini 3.6 Flash and 56.6 for GPT-5.4 mini.

### How many benchmarks does Gemini 3.6 Flash cover on BenchLM?

Gemini 3.6 Flash currently has 8 sourced benchmark scores on BenchLM.

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

GPT-5.4 mini currently has 19 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.6 Flash vs GPT-5.4](/compare/gemini-3-6-flash-vs-gpt-5-4)
- [GPT-5.4 mini vs GPT-5.4](/compare/gpt-5-4-vs-gpt-5-4-mini)
- [Gemini 3.6 Flash vs GPT-5.4 nano](/compare/gemini-3-6-flash-vs-gpt-5-4-nano)
- [GPT-5.4 mini vs GPT-5.4 nano](/compare/gpt-5-4-mini-vs-gpt-5-4-nano)

## Explore More

- [Gemini 3.6 Flash profile](/models/gemini-3-6-flash)
- [GPT-5.4 mini profile](/models/gpt-5-4-mini)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)