# Gemma 4 26B A4B vs GPT-5.4 mini

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

- Canonical page: https://benchlm.ai/compare/gemma-4-26b-a4b-vs-gpt-5-4-mini
- Last updated: October 29, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

GPT-5.4 mini leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- GPT-5.4 mini has the higher overall point estimate 52.98 to 41.8. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 40.6 for Gemma 4 26B A4B and 50.5 for GPT-5.4 mini.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 17.2% and 41.5%.
- Gemma 4 26B A4B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-5.4 mini also has the larger context window at 400K.

## Model Snapshot

| Property | Gemma 4 26B A4B | GPT-5.4 mini |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 400K |
| Overall Score | 41.8 | 52.98 |
| Benchmarks Covered | 9 | 22 |
| Pricing (input/output) | $0.00 / $0.00 | $0.75 / $4.50 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 mini public-lane score: 36.4 (Supported · #84/135)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 60% | Coming soon |
| OSWorld-Verified | Coming soon | 72.1% | 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 |
| Terminal-Bench 2.1 (Vals) | Coming soon | 54.7% | Coming soon |

### Coding

- Winner: GPT-5.4 mini
- Gemma 4 26B A4B public-lane score: 31.4 (Supported · #99/156)
- GPT-5.4 mini public-lane score: 35.3 (Supported · #80/156)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 77.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 60.0% | Coming soon |
| Vibe Code Bench | Coming soon | 47.97% | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 27.0% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 81.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 73.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: 52.8 (Unranked · 3 rankable rows)
- GPT-5.4 mini public-lane score: 43.7 (Unranked · 4 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 44.1% | Coming soon | Coming soon |
| ARC-AGI-1 | Coming soon | 63.70% | Coming soon |
| ARC-AGI-2 | Coming soon | 18.9% | Coming soon |

### Multimodal & Grounded

- Winner: GPT-5.4 mini
- Gemma 4 26B A4B public-lane score: 67.2 (#43/58)
- GPT-5.4 mini public-lane score: 74 (#29/58)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench (LlamaIndex) | 70.27% | Coming soon | Coming soon |
| ParseBench | 58.50% | Coming soon | Coming soon |
| MMMU-Pro | 73.8% | 76.6% | GPT-5.4 mini |
| MMMU-Pro w/ Python | Coming soon | 78% | Coming soon |

### Knowledge

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 40.6 (Estimated · #112/179)
- GPT-5.4 mini public-lane score: 50.5 (Supported · #77/179)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 82.3% | 88% | GPT-5.4 mini |
| MMLU-Pro | 82.6% | Coming soon | Coming soon |
| HLE | 17.2% | 41.5% | GPT-5.4 mini |
| HLE w/o tools | 8.7% | 28.2% | GPT-5.4 mini |
| GPQA Diamond (Vals) | Coming soon | 83.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 84.6% | Coming soon |

### Instruction Following

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 88.7 (#37/157)
- GPT-5.4 mini public-lane score: 89.9 (#30/157)

### Mathematics

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 mini public-lane score: 55.9 (Unranked · 2 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 mini | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 51.228% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 9.756% | Coming soon |

## FAQ

### Which is better overall, Gemma 4 26B A4B or GPT-5.4 mini?

GPT-5.4 mini has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Gemma 4 26B A4B and GPT-5.4 mini?

The widest category gap is in knowledge, where the averages are 40.6 for Gemma 4 26B A4B and 50.5 for GPT-5.4 mini.

### How many benchmarks does Gemma 4 26B A4B cover on BenchLM?

Gemma 4 26B A4B currently has 9 sourced benchmark scores on BenchLM.

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

GPT-5.4 mini currently has 22 sourced benchmark scores on BenchLM.

## Related Comparisons

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

## Explore More

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