Model comparison
Gemma 4 12B vs o1-pro
Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemma 4 12B #137 (Estimated); o1-pro #141 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemma 4 12B and o1-pro share 2 comparable benchmark results. 1 of 8 categories are comparable. 21 results are unique to Gemma 4 12B; 0 to o1-pro.
Updated July 23, 2026- Shared results
- 2
- Gemma 4 12B only
- 21
- o1-pro only
- 0
- Comparable categories
- 1 / 8
Pick Gemma 4 12B if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority.
Confidence note. This is a partial-evidence comparison with 2 shared benchmark results across 1 evidence category; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Gemma 4 12B has the cleaner BenchAlign overall profile here, landing at 47.29 versus 45.94. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
Gemma 4 12B gives you the larger context window at 256K, compared with 200K for o1-pro.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Gemma 4 12B | Δ | o1-pro |
|---|---|---|---|
| Knowledge | Gemma 4 12B77.5 | Margin→ 1.5 | o1-pro79.0 |
| Reasoning | Gemma 4 12B43.4 | MarginNo overlap | o1-proNot measured |
| Math | Gemma 4 12B77.5 | MarginNo overlap | o1-proNot measured |
| Multimodal | Gemma 4 12B69.1 | MarginNo overlap | o1-proNot measured |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
GPQA
KnowledgeA 78.8%B 79%Winner: o1-proΔ 0.2GPQA: Gemma 4 12B scored 78.8%; o1-pro scored 79%. o1-pro wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemma 4 12B | o1-pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemma 4 12BNot available | o1-pro$150 input / $600 output | A complete price comparison is not available. |
| Generation speedtokens per second | Gemma 4 12BNot available | o1-proNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemma 4 12BNot available | o1-proNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemma 4 12B256K | o1-pro200K | Gemma 4 12B lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Gemma 4 12B | o1-pro | Result |
|---|---|---|---|
| τ²-bench resultsSource | 36.3% | — | Not comparable |
Coding1 benchmarks
| Benchmark | Gemma 4 12B | o1-pro | Result |
|---|---|---|---|
| AA-SciCodeSource | 38.2% | — | Not comparable |
Reasoning4 benchmarks
Knowledgeo1-pro wins11 benchmarks
| Benchmark | Gemma 4 12B | o1-pro | Result |
|---|---|---|---|
| GPQASource | 78.8% | 79% | o1-pro leads |
| GPQA-DSource | 78.8% | — | Not comparable |
| MMLU-ProSource | 77.2% | — | Not comparable |
| HLE w/o toolsSource | 5.2% | — | Not comparable |
| MMMLUSource | 83.4% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 22.0% | 18.9% | Gemma 4 12B leads |
| AA-GPQA DiamondSource | 75.3% | — | Not comparable |
| AA-HLESource | 14.8% | — | Not comparable |
| AA-Omniscience IndexSource | -51.9% | — | Not comparable |
| AA-Omniscience AccuracySource | 16.0% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 80.8% | — | Not comparable |
Math1 benchmarks
| Benchmark | Gemma 4 12B | o1-pro | Result |
|---|---|---|---|
| AIME26Source | 77.5% | — | Not comparable |
Multimodal4 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemma 4 12B | o1-pro | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.5% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, Gemma 4 12B or o1-pro?
Gemma 4 12B is ahead on BenchLM's BenchAlign leaderboard, 47.29 to 45.94. The biggest single separator in this matchup is GPQA, where the scores are 78.8% and 79%.
Which is better for knowledge tasks, Gemma 4 12B or o1-pro?
o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 77.5. Inside this category, Artificial Analysis Intelligence Index is the benchmark that creates the most daylight between them.
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