Model comparison
Gemini 3 Pro 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.
Public leaderboard positions: Gemini 3 Pro #19 (Supported); Grok 4.5 #7 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 3 Pro and Grok 4.5 share 10 comparable benchmark results. 0 of 8 categories are comparable. 17 results are unique to Gemini 3 Pro; 18 to Grok 4.5.
Updated July 23, 2026- Shared results
- 10
- Gemini 3 Pro only
- 17
- Grok 4.5 only
- 18
- Comparable categories
- 0 / 8
Benchmark data for Gemini 3 Pro 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.
Gemini 3 Pro is priced at $2.00 input / $12.00 output per 1M tokens, versus $2.00 input / $6.00 output per 1M tokens for Grok 4.5. Gemini 3 Pro has the larger context window at 2M, compared with 500K for Grok 4.5.
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 | Δ | Grok 4.5 |
|---|---|---|---|
| Agentic | Gemini 3 ProNot measured | MarginNo overlap | Grok 4.583.3 |
| Coding | Gemini 3 ProNot measured | MarginNo overlap | Grok 4.564.7 |
| Reasoning | Gemini 3 Pro31.1 | MarginNo overlap | Grok 4.5Not measured |
| Math | Gemini 3 Pro32.9 | MarginNo overlap | Grok 4.5Not measured |
| Multimodal | Gemini 3 Pro81.1 | MarginNo overlap | Grok 4.5Not measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 3 Pro | Grok 4.5 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 3 Pro$2 input / $12 output | Grok 4.5$2 input / $6 output | Grok 4.5 has the lower combined listed price. |
| Generation speedtokens per second | Gemini 3 Pro109 tok/s | Grok 4.5Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemini 3 Pro32.65 s | Grok 4.5Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemini 3 Pro2M | Grok 4.5500K | Gemini 3 Pro lists the larger context window. |
Benchmark Deep Dive
Agentic14 benchmarks
| Benchmark | Gemini 3 Pro | Grok 4.5 | Result |
|---|---|---|---|
| τ²-bench resultsSource | 87.1% | — | Not comparable |
| Gert LabsSource | 63.23% | — | Not comparable |
| JobBenchSource | 11.4% | — | Not comparable |
| Terminal-Bench 2.0Source | — | 83.3% | Not comparable |
| deepSweSource | — | 53% | Not comparable |
| AA Agentic IndexSource | — | 45.7% | Not comparable |
| GDPval-AASource | — | 51.7% | Not comparable |
| GDPval-AASource | — | 1535 | Not comparable |
| AA BriefcaseSource | — | 1323 | Not comparable |
| AA AutomationBenchSource | — | 51.4% | Not comparable |
| AA EnterpriseOps-GymSource | — | 40.8% | Not comparable |
| AA Harvey LABSource | — | 92.4% | Not comparable |
| AA Tau3 BankingSource | — | 32.6% | Not comparable |
| aaTerminalBench21Source | — | 81.6% | Not comparable |
Coding9 benchmarks
| Benchmark | Gemini 3 Pro | Grok 4.5 | Result |
|---|---|---|---|
| Vibe Code BenchSource | 14.30% | — | Not comparable |
| AA-SciCodeSource | 56.1% | 54.1% | Gemini 3 Pro leads |
| AA LiveCodeBenchSource | 91.7% | — | Not comparable |
| 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 |
| VulcanBench v3Source | — | 91.3% | Not comparable |
| AA Coding IndexSource | — | 72.5% | Not comparable |
Reasoning3 benchmarks
Knowledge7 benchmarks
| Benchmark | Gemini 3 Pro | Grok 4.5 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 39.5% | 53.8% | Grok 4.5 leads |
| AA-GPQA DiamondSource | 90.8% | 93.1% | Grok 4.5 leads |
| AA-HLESource | 37.2% | 40.3% | Grok 4.5 leads |
| AA-Omniscience IndexSource | 15.8% | 26.4% | Grok 4.5 leads |
| AA-Omniscience AccuracySource | 55.9% | 52.1% | Gemini 3 Pro leads |
| AA-Omniscience Hallucination RateSource | 90.9% | 53.5% | Grok 4.5 leads |
| AA MMLU-ProSource | 89.8% | — | Not comparable |
Math2 benchmarks
Multilingual1 benchmarks
| Benchmark | Gemini 3 Pro | Grok 4.5 | Result |
|---|---|---|---|
| AA Global-MMLU-LiteSource | 92.2% | — | Not comparable |
Multimodal8 benchmarks
| Benchmark | Gemini 3 Pro | Grok 4.5 | Result |
|---|---|---|---|
| MMMU-ProSource | 81% | — | Not comparable |
| MathVisionSource | 86.6% | — | Not comparable |
| VideoMMMUSource | 87.6% | — | Not comparable |
| ScreenSpot ProSource | 72.7% | — | Not comparable |
| CharXivSource | 81.4% | — | Not comparable |
| V*Source | 88.0% | — | Not comparable |
| AA-MMMU-ProSource | 80.2% | 80.4% | Grok 4.5 leads |
| Design Arena WebsiteSource | — | 1325 | Not comparable |
Inst. Following1 benchmarks
| Benchmark | Gemini 3 Pro | Grok 4.5 | Result |
|---|---|---|---|
| AA-IFBenchSource | 70.4% | — | Not comparable |
Frequently Asked Questions (3)
Can I compare Gemini 3 Pro 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 Gemini 3 Pro and Grok 4.5 today?
Gemini 3 Pro: $2.00 input / $12.00 output per 1M tokens 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.
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