Model comparison
Gemini 3 Pro Deep Think vs Gemma 4 12B
Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemini 3 Pro Deep Think #41 (Estimated); Gemma 4 12B #137 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 3 Pro Deep Think and Gemma 4 12B share 1 comparable benchmark result. 1 of 8 categories are comparable. 1 result is unique to Gemini 3 Pro Deep Think; 22 to Gemma 4 12B.
Updated July 23, 2026- Shared results
- 1
- Gemini 3 Pro Deep Think only
- 1
- Gemma 4 12B only
- 22
- Comparable categories
- 1 / 8
Pick Gemini 3 Pro Deep Think if you want the stronger benchmark profile. Gemma 4 12B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Confidence note. This is a partial-evidence comparison with 1 shared benchmark result 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
Gemini 3 Pro Deep Think is clearly ahead on the BenchAlign aggregate, 61.31 to 47.29. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Gemini 3 Pro Deep Think's sharpest advantage is in reasoning, where it averages 45.1 against 43.4.
Gemini 3 Pro Deep Think gives you the larger context window at 2M, compared with 256K for Gemma 4 12B.
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 | Gemini 3 Pro Deep Think | Δ | Gemma 4 12B |
|---|---|---|---|
| Reasoning | Gemini 3 Pro Deep Think45.1 | Margin← 1.7 | Gemma 4 12B43.4 |
| Knowledge | Gemini 3 Pro Deep ThinkNot measured | MarginNo overlap | Gemma 4 12B77.5 |
| Math | Gemini 3 Pro Deep ThinkNot measured | MarginNo overlap | Gemma 4 12B77.5 |
| Multimodal | Gemini 3 Pro Deep ThinkNot measured | MarginNo overlap | Gemma 4 12B69.1 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 3 Pro Deep Think | Gemma 4 12B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 3 Pro Deep ThinkNot available | Gemma 4 12BNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Gemini 3 Pro Deep ThinkNot available | Gemma 4 12BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemini 3 Pro Deep ThinkNot available | Gemma 4 12BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemini 3 Pro Deep Think2M | Gemma 4 12B256K | Gemini 3 Pro Deep Think lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | Gemma 4 12B | Result |
|---|---|---|---|
| τ²-bench resultsSource | — | 36.3% | Not comparable |
Coding1 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | Gemma 4 12B | Result |
|---|---|---|---|
| AA-SciCodeSource | — | 38.2% | Not comparable |
ReasoningGemini 3 Pro Deep Think wins5 benchmarks
Knowledge11 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | Gemma 4 12B | 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 |
Math1 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | Gemma 4 12B | Result |
|---|---|---|---|
| AIME26Source | — | 77.5% | Not comparable |
Multimodal4 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemini 3 Pro Deep Think | Gemma 4 12B | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 73.5% | Not comparable |
Frequently Asked Questions (2)
Which is better, Gemini 3 Pro Deep Think or Gemma 4 12B?
Gemini 3 Pro Deep Think is ahead on BenchLM's BenchAlign leaderboard, 61.31 to 47.29.
Which is better for reasoning, Gemini 3 Pro Deep Think or Gemma 4 12B?
Gemini 3 Pro Deep Think has the edge for reasoning in this comparison, averaging 45.1 versus 43.4. Inside this category, CritPt is the benchmark that creates the most daylight between them.
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