Skip to main content
BenchLM
Advertise

Model comparison

Gemini 3.1 Pro vs Grok 4

Data verified

Head-to-head evidence from 16 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

55.3/100
Margin
5.1pts
winning →
60.42/100
1 category wins0 category wins

Public leaderboard positions: Gemini 3.1 Pro #83 (Estimated); Grok 4 #50 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 3.1 Pro and Grok 4 share 16 comparable benchmark results. 1 of 8 categories are comparable. 31 results are unique to Gemini 3.1 Pro; 0 to Grok 4.

Updated July 20, 2026
Shared results
16
Gemini 3.1 Pro only
31
Grok 4 only
0
Comparable categories
1 / 8

Pick Grok 4 if you want the stronger benchmark profile. Gemini 3.1 Pro only becomes the better choice if mathematics is the priority or you need the larger 1M context window.

Confidence note. This is a partial-evidence comparison with 16 shared benchmark results across 7 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

Grok 4 is clearly ahead on the BenchAlign aggregate, 60.42 to 55.3. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Gemini 3.1 Pro gives you the larger context window at 1M, compared with 128K for Grok 4.

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 scores and score margins for Gemini 3.1 Pro and Grok 4
CategoryGemini 3.1 ProΔGrok 4
MathGemini 3.1 Pro31.8Margin← 16.5Grok 415.3
ReasoningGemini 3.1 Pro77.1MarginNo overlapGrok 4Not measured
MultimodalGemini 3.1 Pro82.6MarginNo overlapGrok 4Not measured

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · Gemini 3.1 ProB · Grok 4

  1. FrontierMath v2 (Tiers 1-3)

    Math
    Source ↗
    A 36.900%B 19.655%
    Winner: Gemini 3.1 ProΔ 17.2
    FrontierMath v2 (Tiers 1-3): Gemini 3.1 Pro scored 36.900%; Grok 4 scored 19.655%. Gemini 3.1 Pro wins this benchmark.

  2. FrontierMath v2 (Tier 4)

    Math
    Source ↗
    A 16.700%B 2.083%
    Winner: Gemini 3.1 ProΔ 14.6
    FrontierMath v2 (Tier 4): Gemini 3.1 Pro scored 16.700%; Grok 4 scored 2.083%. Gemini 3.1 Pro wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricGemini 3.1 ProGrok 4Comparison
Input / output priceUSD per 1M tokensGemini 3.1 Pro$2 input / $12 outputGrok 4Not availableA complete price comparison is not available.
Generation speedtokens per secondGemini 3.1 Pro109 tok/sGrok 454 tok/sGemini 3.1 Pro has the higher measured throughput.
First-answer latencyseconds to first tokenGemini 3.1 Pro29.71 sGrok 415.60 sGrok 4 reaches the first token sooner.
Context windowmaximum listed tokensGemini 3.1 Pro1MGrok 4128KGemini 3.1 Pro lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGemini 3.1 ProGrok 4Result
Claw-EvalSource 57.8%—Not comparable
DeepSearchQASource 69.7%—Not comparable
τ²-bench resultsSource 95.6%74.9%Gemini 3.1 Pro leads
AA Agentic IndexSource 21.4%—Not comparable
APEX-Agents-AASource 32.0%—Not comparable
GDPval-AASource 23.2%—Not comparable
GDPval-AASource 965—Not comparable
Gert LabsSource 56.87%42.34%Gemini 3.1 Pro leads
ResearchClawBenchSource 13.3%—Not comparable
AA AutomationBenchSource 37.5%—Not comparable
AA EnterpriseOps-GymSource 42.2%—Not comparable
AA Harvey LABSource 0.0%—Not comparable
AA ITBenchSource 30.3%—Not comparable
AA Tau3 BankingSource 16.5%—Not comparable
terminalBenchHardSource 53.8%—Not comparable
aaTerminalBench21Source 73.8%—Not comparable
Coding
BenchmarkGemini 3.1 ProGrok 4Result
LiveCodeBench ProSource 82.9%—Not comparable
React Native EvalsSource 78.9%72.6%Gemini 3.1 Pro leads
Vibe Code BenchSource 32.03%—Not comparable
AA Coding IndexSource 68.8%—Not comparable
AA-SciCodeSource 58.9%45.7%Gemini 3.1 Pro leads
Reasoning
BenchmarkGemini 3.1 ProGrok 4Result
ARC-AGI-2Source 77.1%—Not comparable
AA-LCRSource 72.7%68.0%Gemini 3.1 Pro leads
CritPtSource 17.7%2.0%Gemini 3.1 Pro leads
Knowledge
BenchmarkGemini 3.1 ProGrok 4Result
GPQA-DSource 94.3%—Not comparable
HLE w/o toolsSource 45.4%—Not comparable
HealthBench HardSource 20.6%—Not comparable
MedXpertQA (Text)Source 71.5%—Not comparable
Artificial Analysis Intelligence IndexSource 46.5%33.3%Gemini 3.1 Pro leads
AA-GPQA DiamondSource 94.1%87.7%Gemini 3.1 Pro leads
AA-HLESource 44.7%23.9%Gemini 3.1 Pro leads
AA-Omniscience IndexSource 32.9%3.8%Gemini 3.1 Pro leads
AA-Omniscience AccuracySource 55.3%41.4%Gemini 3.1 Pro leads
AA-Omniscience Hallucination RateSource 49.9%64.2%Gemini 3.1 Pro leads
MathGemini 3.1 Pro wins
BenchmarkGemini 3.1 ProGrok 4Result
FrontierMath v2 (Tiers 1-3)Source 36.900%19.655%Gemini 3.1 Pro leads
FrontierMath v2 (Tier 4)Source 16.700%2.083%Gemini 3.1 Pro leads
Multilingual
BenchmarkGemini 3.1 ProGrok 4Result
AA Global-MMLU-LiteSource 93.2%—Not comparable
Multimodal
BenchmarkGemini 3.1 ProGrok 4Result
MMMU-ProSource 83.9%—Not comparable
CharXivSource 80.2%—Not comparable
ERQASource 69.4%—Not comparable
SimpleVQASource 72.4%—Not comparable
ScreenSpot ProSource 84.4%—Not comparable
ZeroBenchSource 29.0%—Not comparable
MedXpertQA (MM)Source 81.3%—Not comparable
AA-MMMU-ProSource 82.4%68.8%Gemini 3.1 Pro leads
Design Arena WebsiteSource 1284—Not comparable
Inst. Following
BenchmarkGemini 3.1 ProGrok 4Result
AA-IFBenchSource 77.1%53.7%Gemini 3.1 Pro leads
Frequently Asked Questions (2)

Which is better, Gemini 3.1 Pro or Grok 4?

Grok 4 is ahead on BenchLM's BenchAlign leaderboard, 60.42 to 55.3. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 36.900% and 19.655%.

Which is better for math, Gemini 3.1 Pro or Grok 4?

Gemini 3.1 Pro has the edge for math in this comparison, averaging 31.8 versus 15.3. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.

Related Comparisons

Explore More

Google Compare Pricing Methodology Find Your Best LLM Overall Rankings
Last updated: July 20, 2026

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.