Model comparison
Gemma 4 12B vs Grok 4.5
Head-to-head evidence from 10 shared benchmark results across 4 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
BenchAlign evidence: Gemma 4 12B estimated; Grok 4.5 supported. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemma 4 12B and Grok 4.5 share 10 comparable benchmark results. 0 of 8 categories are comparable. 15 results are unique to Gemma 4 12B; 17 to Grok 4.5.
Updated July 16, 2026- Shared results
- 10
- Gemma 4 12B only
- 15
- Grok 4.5 only
- 17
- Comparable categories
- 0 / 8
Benchmark data for Gemma 4 12B and Grok 4.5 is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 10 shared benchmark results across 4 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Grok 4.5 has the larger context window at 500K, 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 | Gemma 4 12B | Δ | Grok 4.5 |
|---|---|---|---|
| Agentic | Gemma 4 12BNot measured | MarginNo overlap | Grok 4.583.3 |
| Coding | Gemma 4 12BNot measured | MarginNo overlap | Grok 4.564.7 |
| Reasoning | Gemma 4 12B43.4 | MarginNo overlap | Grok 4.5Not measured |
| Knowledge | Gemma 4 12B77.5 | MarginNo overlap | Grok 4.5Not measured |
| Math | Gemma 4 12B77.5 | MarginNo overlap | Grok 4.5Not measured |
| Multimodal | Gemma 4 12B69.1 | MarginNo overlap | Grok 4.5Not measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemma 4 12B | Grok 4.5 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemma 4 12BNot available | Grok 4.5$2 input / $6 output | A complete price comparison is not available. |
| Generation speedtokens per second | Gemma 4 12BNot available | Grok 4.5Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemma 4 12BNot available | Grok 4.5Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemma 4 12B256K | Grok 4.5500K | Grok 4.5 lists the larger context window. |
Benchmark Deep Dive
Agentic11 benchmarks
| Benchmark | Gemma 4 12B | Grok 4.5 | Result |
|---|---|---|---|
| τ²-bench resultsSource | 36.3% | — | Not comparable |
| Terminal-Bench 2.0Source | — | 83.3% | Not comparable |
| deepSweSource | — | 53% | Not comparable |
| AA Agentic IndexSource | — | 45.7% | Not comparable |
| GDPval-AASource | — | 51.9% | Not comparable |
| GDPval-AASource | — | 1539 | Not comparable |
| AA BriefcaseSource | — | 1324 | Not comparable |
| AA AutomationBenchSource | — | 51.4% | Not comparable |
| AA EnterpriseOps-GymSource | — | 40.8% | Not comparable |
| AA Harvey LABSource | — | 13.3% | Not comparable |
| AA Tau3 BankingSource | — | 32.6% | Not comparable |
Coding9 benchmarks
| Benchmark | Gemma 4 12B | Grok 4.5 | Result |
|---|---|---|---|
| LiveCodeBench v6Source | 72.0% | — | Not comparable |
| Terminal-Bench HardSource | 18.2% | — | Not comparable |
| AA-SciCodeSource | 38.2% | 54.1% | Grok 4.5 leads |
| SWE-bench ProSource | — | 64.7% | Not comparable |
| SWE MultilingualSource | — | 78% | Not comparable |
| Terminal-Bench 2.0Source | — | 83.3% | Not comparable |
| cursorBench32Source | — | 66.7% | Not comparable |
| AA Coding IndexSource | — | 72.5% | Not comparable |
| AA Terminal-Bench 2.1Source | — | 81.6% | Not comparable |
Reasoning4 benchmarks
Knowledge11 benchmarks
| Benchmark | Gemma 4 12B | Grok 4.5 | 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% | 53.8% | Grok 4.5 leads |
| AA-GPQA DiamondSource | 75.3% | 93.1% | Grok 4.5 leads |
| AA-HLESource | 14.8% | 40.3% | Grok 4.5 leads |
| AA-Omniscience IndexSource | -51.9% | 26.4% | Grok 4.5 leads |
| AA-Omniscience AccuracySource | 16.0% | 52.1% | Grok 4.5 leads |
| AA-Omniscience Hallucination RateSource | 80.8% | 53.5% | Grok 4.5 leads |
Math1 benchmarks
| Benchmark | Gemma 4 12B | Grok 4.5 | Result |
|---|---|---|---|
| AIME26Source | 77.5% | — | Not comparable |
Multimodal5 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemma 4 12B | Grok 4.5 | Result |
|---|---|---|---|
| AA-IFBenchSource | 73.5% | — | Not comparable |
Frequently Asked Questions (3)
Can I compare Gemma 4 12B and Grok 4.5 on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Gemma 4 12B and Grok 4.5 today?
Grok 4.5: $2.00 input / $6.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Related Comparisons
Explore More
The AI models change fast. We track them for you.
A weekly brief for engineers and researchers covering new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.