# Gemma 4 26B A4B vs GPT-5.4 Pro

> Side-by-side benchmark comparison for Gemma 4 26B A4B and GPT-5.4 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemma-4-26b-a4b-vs-gpt-5-4-pro
- Last updated: October 20, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemma 4 26B A4B and GPT-5.4 Pro 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.
- Gemma 4 26B A4B has the lower published output-token price.
- GPT-5.4 Pro has the larger published context window at 1.05M.

## Model Snapshot

| Property | Gemma 4 26B A4B | 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) | 45.61 | 68.69 |
| Benchmarks Covered | 9 | 11 |
| Pricing (input/output) | $0.00 / $0.00 | $30.00 / $180.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 26B A4B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | Coming soon | 89.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 30.9 (Supported · #94/152)
- GPT-5.4 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 26B A4B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 77.1% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 52.8 (Unranked · 3 rankable rows)
- GPT-5.4 Pro public-lane score: 78.1 (Unranked · 3 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 44.1% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 83.3% | Coming soon |
| ARC-AGI-1 | Coming soon | 94.50% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 66.9 (#40/55)
- GPT-5.4 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 26B A4B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench (LlamaIndex) | 70.27% | Coming soon | Coming soon |
| ParseBench | 58.50% | Coming soon | Coming soon |
| MMMU-Pro | 73.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 39.9 (Estimated · #121/187)
- GPT-5.4 Pro public-lane score: Coming soon

| Benchmark | Gemma 4 26B A4B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 82.3% | Coming soon | Coming soon |
| MMLU-Pro | 82.6% | Coming soon | Coming soon |
| HLE | 17.2% | 58.7% | GPT-5.4 Pro |
| HLE w/o tools | 8.7% | 42.7% | GPT-5.4 Pro |
| FrontierScience | Coming soon | 36.7% | Coming soon |
| FrontierScience Research | Coming soon | 36.7% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 88.7 (#34/149)
- GPT-5.4 Pro public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 Pro public-lane score: 86.5 (Unranked · 4 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 Pro | Winner |
|-----------|-----------|-----------|--------|
| IPhO 2025 (Theory) | Coming soon | 93.5% | Coming soon |
| FrontierMath (legacy) | Coming soon | 50% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 82.456% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 58.537% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemma 4 26B A4B and GPT-5.4 Pro?

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

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

## Explore More

- [Gemma 4 26B A4B profile](/models/gemma-4-26b-a4b)
- [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)