# Gemma 4 26B A4B vs o1

> Side-by-side benchmark comparison for Gemma 4 26B A4B and o1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemma-4-26b-a4b-vs-o1
- Last updated: October 19, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemma 4 26B A4B and o1 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.
- Gemma 4 26B A4B has the lower published output-token price.
- Gemma 4 26B A4B has the larger published context window at 256K.

## Model Snapshot

| Property | Gemma 4 26B A4B | o1 |
|----------|----------|----------|
| Creator | Google | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 200K |
| Independent public score (not head-to-head) | 45.62 | 38.34 |
| Benchmarks Covered | 7 | 4 |
| Pricing (input/output) | $0.00 / $0.00 | $15.00 / $60.00 |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 30.9 (Supported · #94/151)
- o1 public-lane score: 27.6 (Estimated · #101/151)

| Benchmark | Gemma 4 26B A4B | o1 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 77.1% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 53.7 (Unranked · 3 rankable rows)
- o1 public-lane score: 70.5 (Unranked · 2 rankable rows)

| Benchmark | Gemma 4 26B A4B | o1 | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 44.1% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 66.9 (#40/55)
- o1 public-lane score: Coming soon

| Benchmark | Gemma 4 26B A4B | o1 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 73.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 40 (Estimated · #120/186)
- o1 public-lane score: 41.5 (Supported · #113/186)

| Benchmark | Gemma 4 26B A4B | o1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 82.3% | 75.7% | Gemma 4 26B A4B |
| MMLU-Pro | 82.6% | Coming soon | Coming soon |
| HLE | 17.2% | Coming soon | Coming soon |
| HLE w/o tools | 8.7% | Coming soon | Coming soon |
| MMLU | Coming soon | 91.8% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: 88.7 (#34/148)
- o1 public-lane score: 86 (#46/148)

| Benchmark | Gemma 4 26B A4B | o1 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 92.2% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Gemma 4 26B A4B public-lane score: Coming soon
- o1 public-lane score: 33.5 (Unranked · 1 rankable row)

| Benchmark | Gemma 4 26B A4B | o1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 14.737% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemma 4 26B A4B and o1?

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 26B A4B vs Gemma 4 31B](/compare/gemma-4-26b-a4b-vs-gemma-4-31b)
- [o1 vs Gemma 4 31B](/compare/gemma-4-31b-vs-o1)
- [Gemma 4 26B A4B vs Gemma 4 12B](/compare/gemma-4-12b-vs-gemma-4-26b-a4b)
- [o1 vs Gemma 4 12B](/compare/gemma-4-12b-vs-o1)

## Explore More

- [Gemma 4 26B A4B profile](/models/gemma-4-26b-a4b)
- [o1 profile](/models/o1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)