# Gemma 4 26B A4B vs GPT-5.4 nano

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

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

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

GPT-5.4 nano 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 nano has the higher overall point estimate 46.15 to 41.8. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in multimodal & grounded, where the averages are 67.2 for Gemma 4 26B A4B and 52.6 for GPT-5.4 nano.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 17.2% and 37.7%.
- 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 nano also has the larger context window at 400K.

## Model Snapshot

| Property | Gemma 4 26B A4B | GPT-5.4 nano |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 400K |
| Overall Score | 41.8 | 46.15 |
| Benchmarks Covered | 9 | 23 |
| Pricing (input/output) | $0.00 / $0.00 | $0.20 / $1.25 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 nano public-lane score: 33.7 (Supported · #97/135)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 46.3% | Coming soon |
| OSWorld-Verified | Coming soon | 39% | Coming soon |
| MCP Atlas | Coming soon | 56.1% | Coming soon |
| Toolathlon | Coming soon | 35.5% | Coming soon |
| τ²-bench results | Coming soon | 92.5% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 41.6% | Coming soon |

### Coding

- Winner: Gemma 4 26B A4B
- Gemma 4 26B A4B public-lane score: 31.4 (Supported · #99/156)
- GPT-5.4 nano public-lane score: 30.1 (Supported · #100/156)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 77.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 46.3% | Coming soon |
| Vibe Code Bench | Coming soon | 26.10% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 84.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 69.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: 52.8 (Unranked · 3 rankable rows)
- GPT-5.4 nano public-lane score: 40.6 (Unranked · 4 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 44.1% | Coming soon | Coming soon |
| ARC-AGI-1 | Coming soon | 51.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 5.7% | Coming soon |

### Multimodal & Grounded

- Winner: Gemma 4 26B A4B
- Gemma 4 26B A4B public-lane score: 67.2 (#43/58)
- GPT-5.4 nano public-lane score: 52.6 (#51/58)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench (LlamaIndex) | 70.27% | 74.90% | GPT-5.4 nano |
| ParseBench | 58.50% | 43.35% | Gemma 4 26B A4B |
| MMMU-Pro | 73.8% | 66.1% | Gemma 4 26B A4B |
| MMMU-Pro w/ Python | Coming soon | 69.5% | Coming soon |

### Knowledge

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 40.6 (Estimated · #112/179)
- GPT-5.4 nano public-lane score: 39.4 (Supported · #117/179)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 82.3% | 82.8% | GPT-5.4 nano |
| MMLU-Pro | 82.6% | Coming soon | Coming soon |
| HLE | 17.2% | 37.7% | GPT-5.4 nano |
| HLE w/o tools | 8.7% | 24.3% | GPT-5.4 nano |
| GPQA Diamond (Vals) | Coming soon | 77.5% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 77.2% | Coming soon |

### Instruction Following

- Winner: Directional only
- Gemma 4 26B A4B public-lane score: 88.7 (#37/157)
- GPT-5.4 nano public-lane score: 93.3 (#12/157)

### Mathematics

- Winner: Not comparable
- Gemma 4 26B A4B public-lane score: Coming soon
- GPT-5.4 nano public-lane score: 52.3 (Unranked · 2 rankable rows)

| Benchmark | Gemma 4 26B A4B | GPT-5.4 nano | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 44.912% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 12.195% | Coming soon |

## FAQ

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

GPT-5.4 nano 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 nano?

The widest category gap is in multimodal & grounded, where the averages are 67.2 for Gemma 4 26B A4B and 52.6 for GPT-5.4 nano.

### 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 nano cover on BenchLM?

GPT-5.4 nano currently has 23 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 nano vs Gemma 4 31B](/compare/gemma-4-31b-vs-gpt-5-4-nano)
- [Gemma 4 26B A4B vs Gemma 4 12B](/compare/gemma-4-12b-vs-gemma-4-26b-a4b)
- [GPT-5.4 nano vs Gemma 4 12B](/compare/gemma-4-12b-vs-gpt-5-4-nano)

## Explore More

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