# Gemma 4 26B A4B vs GPT-5.4

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

- Canonical page: https://benchlm.ai/compare/gemma-4-26b-a4b-vs-gpt-5-4
- Last updated: October 17, 2026

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

## Quick Verdict

Pick GPT-5.4 if you want the stronger benchmark profile. Gemma 4 26B A4B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.4 leads overall 66.7 to 45.65.
- The clearest category separation is in knowledge, where the averages are 40 for Gemma 4 26B A4B and 69.1 for GPT-5.4.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 17.2% and 52.1%.
- 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 also has the larger context window at 1.05M.

## Model Snapshot

| Property | Gemma 4 26B A4B | GPT-5.4 |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1.05M |
| Overall Score | 45.65 | 66.7 |
| Benchmarks Covered | 7 | 42 |
| Pricing (input/output) | $0.00 / $0.00 | $2.50 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 public-lane score: 52.1 (Supported · #44/128)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 75.1% | Coming soon |
| CyberGym | Coming soon | 79.0% | Coming soon |
| BrowseComp | Coming soon | 82.7% | Coming soon |
| OSWorld-Verified | Coming soon | 75% | Coming soon |
| MCP Atlas | Coming soon | 70.6% | Coming soon |
| Toolathlon | Coming soon | 54.6% | Coming soon |
| τ²-bench results | Coming soon | 98.9% | Coming soon |
| Claw-Eval | Coming soon | 60.3% | Coming soon |
| DeepSearchQA | Coming soon | 73.6% | Coming soon |
| Gert Labs | Coming soon | 64.89% | Coming soon |
| ResearchClawBench | Coming soon | 15.3% | Coming soon |
| JobBench | Coming soon | 38.9% | Coming soon |
| ExploitGym | Coming soon | 6.0% | Coming soon |
| ApprenticeBench | Coming soon | 11% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |

### Coding

- Winner: GPT-5.4
- Gemma 4 26B A4B public-lane score: 30.9 (Supported · #93/150)
- GPT-5.4 public-lane score: 47.7 (Supported · #48/150)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 77.1% | Coming soon | Coming soon |
| LiveCodeBench Pro | Coming soon | 87.5% | Coming soon |
| SWE-bench Pro | Coming soon | 57.7% | Coming soon |
| React Native Evals | Coming soon | 85.3% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 75.1% | Coming soon |
| Vibe Code Bench | Coming soon | 67.42% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 19.0% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: 53.7 (Unranked · 3 rankable rows)
- GPT-5.4 public-lane score: 64.2 (#23/28)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 44.1% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 74.0% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.2% | Coming soon |
| ARC-AGI-1 | Coming soon | 93.67% | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 66.9 (#39/54)
- GPT-5.4 public-lane score: 73.1 (#30/54)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 73.8% | 81.2% | GPT-5.4 |
| OfficeQA Pro | Coming soon | 53.2% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 82.1% | Coming soon |
| CharXiv | Coming soon | 82.8% | Coming soon |
| ERQA | Coming soon | 65.4% | Coming soon |
| SimpleVQA | Coming soon | 61.1% | Coming soon |
| ScreenSpot Pro | Coming soon | 85.4% | Coming soon |
| ZeroBench | Coming soon | 41.0% | Coming soon |
| MedXpertQA (MM) | Coming soon | 77.1% | Coming soon |

### Knowledge

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 40 (Estimated · #118/184)
- GPT-5.4 public-lane score: 69.1 (Supported · #20/184)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 82.3% | 92.8% | GPT-5.4 |
| MMLU-Pro | 82.6% | Coming soon | Coming soon |
| HLE | 17.2% | 52.1% | GPT-5.4 |
| HLE w/o tools | 8.7% | 39.8% | GPT-5.4 |
| GPQA-D | Coming soon | 92.8% | Coming soon |
| HealthBench Hard | Coming soon | 40.1% | Coming soon |
| MedXpertQA (Text) | Coming soon | 59.6% | Coming soon |
| HealthBench Professional | Coming soon | 48.1% | Coming soon |

### Instruction Following

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 88.7 (#34/148)
- GPT-5.4 public-lane score: 90.7 (#23/148)

### Mathematics

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 public-lane score: 82 (Unranked · 2 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 78.596% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 49.000% | Coming soon |

## FAQ

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

GPT-5.4 is ahead overall on BenchLM right now.

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

The widest category gap is in knowledge, where the averages are 40 for Gemma 4 26B A4B and 69.1 for GPT-5.4.

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

Gemma 4 26B A4B currently has 7 sourced benchmark scores on BenchLM.

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

GPT-5.4 currently has 42 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 vs Gemma 4 31B](/compare/gemma-4-31b-vs-gpt-5-4)
- [Gemma 4 26B A4B vs Gemma 4 12B](/compare/gemma-4-12b-vs-gemma-4-26b-a4b)
- [GPT-5.4 vs Gemma 4 12B](/compare/gemma-4-12b-vs-gpt-5-4)

## Explore More

- [Gemma 4 26B A4B profile](/models/gemma-4-26b-a4b)
- [GPT-5.4 profile](/models/gpt-5-4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)