Model comparison
Gemma 4 12B vs o4-mini (high)
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemma 4 12B #137 (Estimated); o4-mini (high) #118 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemma 4 12B and o4-mini (high) share 0 comparable benchmark results. 1 of 8 categories are comparable. 23 results are unique to Gemma 4 12B; 2 to o4-mini (high).
Updated July 23, 2026- Shared results
- 0
- Gemma 4 12B only
- 23
- o4-mini (high) only
- 2
- Comparable categories
- 1 / 8
Pick o4-mini (high) if you want the stronger benchmark profile. Gemma 4 12B only becomes the better choice if mathematics is the priority or you need the larger 256K context window.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
o4-mini (high) has the cleaner BenchAlign overall profile here, landing at 49.98 versus 47.29. 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 o4-mini (high).
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemma 4 12B | o4-mini (high) | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemma 4 12BNot available | o4-mini (high)Not available | A complete price comparison is not available. |
| Generation speedtokens per second | Gemma 4 12BNot available | o4-mini (high)161 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemma 4 12BNot available | o4-mini (high)21.94 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemma 4 12B256K | o4-mini (high)200K | Gemma 4 12B lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Gemma 4 12B | o4-mini (high) | Result |
|---|---|---|---|
| τ²-bench resultsSource | 36.3% | — | Not comparable |
Coding1 benchmarks
| Benchmark | Gemma 4 12B | o4-mini (high) | Result |
|---|---|---|---|
| AA-SciCodeSource | 38.2% | — | Not comparable |
Reasoning4 benchmarks
Knowledge11 benchmarks
| Benchmark | Gemma 4 12B | o4-mini (high) | Result |
|---|---|---|---|
| GPQASource | 78.8% | — | Not comparable |
| 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% | — | Not comparable |
| 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 |
MathGemma 4 12B wins3 benchmarks
Multimodal4 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemma 4 12B | o4-mini (high) | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.5% | — | Not comparable |
Frequently Asked Questions (2)
Which is better, Gemma 4 12B or o4-mini (high)?
o4-mini (high) is ahead on BenchLM's BenchAlign leaderboard, 49.98 to 47.29.
Which is better for math, Gemma 4 12B or o4-mini (high)?
Gemma 4 12B has the edge for math in this comparison, averaging 77.5 versus 20.2. o4-mini (high) stays close enough that the answer can still flip depending on your workload.
Related Comparisons
Explore More
Choose a model with this week’s evidence
Join 2,000+ readers for ranking moves, pricing changes, and the claims that still need proof.
One email each week. Unsubscribe anytime.