# Gemma 4 12B vs GPT-5.4 Pro

> Side-by-side benchmark comparison for Gemma 4 12B and GPT-5.4 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemma-4-12b-vs-gpt-5-4-pro
- Last updated: September 4, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemma 4 12B and GPT-5.4 Pro share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- GPT-5.4 Pro has the larger published context window at 1.05M.

## Model Snapshot

| Property | Gemma 4 12B | GPT-5.4 Pro |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1.05M |
| Independent public score (not head-to-head) | 46.64 | 61.75 |
| Benchmarks Covered | 12 | 10 |
| Pricing (input/output) | N/A | $30.00 / $180.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 47.9 (Estimated · #81/151)
- GPT-5.4 Pro public-lane score: 58.1 (Estimated · #33/151)

| Benchmark | Gemma 4 12B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | Coming soon | 89.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 46.6 (Estimated · #97/183)
- GPT-5.4 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 12B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 72.0% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 26.1 (#44/48)
- GPT-5.4 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 12B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 69.1% | Coming soon | Coming soon |
| MathVision | 79.7% | Coming soon | Coming soon |
| MedXpertQA (MM) | 48.7% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 34 (Unranked · 4 rankable rows)
- GPT-5.4 Pro public-lane score: 70.1 (Unranked · 2 rankable rows)

| Benchmark | Gemma 4 12B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| BBH | 53% | Coming soon | Coming soon |
| MRCRv2 | 43.4% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 83.3% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 40.4 (Supported · #138/181)
- GPT-5.4 Pro public-lane score: 60.7 (Estimated · #39/181)

| Benchmark | Gemma 4 12B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 78.8% | Coming soon | Coming soon |
| GPQA-D | 78.8% | Coming soon | Coming soon |
| MMLU-Pro | 77.2% | Coming soon | Coming soon |
| HLE w/o tools | 5.2% | 42.7% | GPT-5.4 Pro |
| MMMLU | 83.4% | Coming soon | Coming soon |
| HLE | Coming soon | 58.7% | Coming soon |
| FrontierScience | Coming soon | 36.7% | Coming soon |
| FrontierScience Research | Coming soon | 36.7% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 89.8 (#21/120)
- GPT-5.4 Pro public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Gemma 4 12B public-lane score: 57.6 (Unranked · 1 rankable row)
- GPT-5.4 Pro public-lane score: 69 (Unranked · 4 rankable rows)

| Benchmark | Gemma 4 12B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 77.5% | Coming soon | Coming soon |
| IPhO 2025 (Theory) | Coming soon | 93.5% | Coming soon |
| FrontierMath (legacy) | Coming soon | 50% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 50.000% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 37.500% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemma 4 12B and GPT-5.4 Pro?

Not yet. The models share only 1 sourced benchmark row, 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

- [Gemma 4 12B vs Gemma 4 31B](/compare/gemma-4-12b-vs-gemma-4-31b)
- [GPT-5.4 Pro vs Gemma 4 31B](/compare/gemma-4-31b-vs-gpt-5-4-pro)
- [Gemma 4 12B vs Gemma 4 26B A4B](/compare/gemma-4-12b-vs-gemma-4-26b-a4b)
- [GPT-5.4 Pro vs Gemma 4 26B A4B](/compare/gemma-4-26b-a4b-vs-gpt-5-4-pro)

## Explore More

- [Gemma 4 12B profile](/models/gemma-4-12b)
- [GPT-5.4 Pro profile](/models/gpt-5-4-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)