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Model comparison

Gemini 2.5 Pro vs Grok 4

Data verified

Head-to-head evidence from 15 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

57.25/100
Margin
3.2pts
winning →
60.42/100
0 category wins1 category wins

Public leaderboard positions: Gemini 2.5 Pro #70 (Supported); Grok 4 #50 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 2.5 Pro and Grok 4 share 15 comparable benchmark results. 1 of 8 categories are comparable. 9 results are unique to Gemini 2.5 Pro; 1 to Grok 4.

Updated July 20, 2026
Shared results
15
Gemini 2.5 Pro only
9
Grok 4 only
1
Comparable categories
1 / 8

Pick Grok 4 if you want the stronger benchmark profile. Gemini 2.5 Pro only becomes the better choice if you need the larger 1M context window.

Confidence note. This is a partial-evidence comparison with 15 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 57.25. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Grok 4's sharpest advantage is in mathematics, where it averages 15.3 against 11.6. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 14.138% to 19.655%.

Gemini 2.5 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 2.5 Pro and Grok 4
CategoryGemini 2.5 ProΔGrok 4
MathGemini 2.5 Pro11.6Margin→ 3.7Grok 415.3
CodingGemini 2.5 Pro63.8MarginNo overlapGrok 4Not measured
KnowledgeGemini 2.5 Pro27.4MarginNo overlapGrok 4Not measured

Decisive benchmark drivers

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

More
A · Gemini 2.5 ProB · Grok 4

  1. FrontierMath v2 (Tiers 1-3)

    Math
    Source ↗
    A 14.138%B 19.655%
    Winner: Grok 4Δ 5.5
    FrontierMath v2 (Tiers 1-3): Gemini 2.5 Pro scored 14.138%; Grok 4 scored 19.655%. Grok 4 wins this benchmark.

  2. FrontierMath v2 (Tier 4)

    Math
    Source ↗
    A 4.167%B 2.083%
    Winner: Gemini 2.5 ProΔ 2.1
    FrontierMath v2 (Tier 4): Gemini 2.5 Pro scored 4.167%; Grok 4 scored 2.083%. Gemini 2.5 Pro wins this benchmark.

Operational comparison

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

MetricGemini 2.5 ProGrok 4Comparison
Input / output priceUSD per 1M tokensGemini 2.5 Pro$1.25 input / $10 outputGrok 4Not availableA complete price comparison is not available.
Generation speedtokens per secondGemini 2.5 Pro117 tok/sGrok 454 tok/sGemini 2.5 Pro has the higher measured throughput.
First-answer latencyseconds to first tokenGemini 2.5 Pro21.19 sGrok 415.60 sGrok 4 reaches the first token sooner.
Context windowmaximum listed tokensGemini 2.5 Pro1MGrok 4128KGemini 2.5 Pro lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGemini 2.5 ProGrok 4Result
AA Agentic IndexSource 7.1%—Not comparable
τ²-bench resultsSource 54.1%74.9%Grok 4 leads
Gert LabsSource 42.01%42.34%Grok 4 leads
GDPval-AASource 8.3%—Not comparable
GDPval-AASource 665—Not comparable
Coding
BenchmarkGemini 2.5 ProGrok 4Result
SWE-bench VerifiedSource 63.8%—Not comparable
Vibe Code BenchSource 0.40%—Not comparable
AA Coding IndexSource 33.3%—Not comparable
AA-SciCodeSource 42.8%45.7%Grok 4 leads
React Native EvalsSource —72.6%Not comparable
Reasoning
BenchmarkGemini 2.5 ProGrok 4Result
AA-LCRSource 66.0%68.0%Grok 4 leads
CritPtSource 2.6%2.0%Gemini 2.5 Pro leads
Knowledge
BenchmarkGemini 2.5 ProGrok 4Result
GPQASource 83%—Not comparable
HLESource 18.8%—Not comparable
Artificial Analysis Intelligence IndexSource 25.8%33.3%Grok 4 leads
AA-GPQA DiamondSource 84.4%87.7%Grok 4 leads
AA-HLESource 21.1%23.9%Grok 4 leads
AA-Omniscience IndexSource -14.3%3.8%Grok 4 leads
AA-Omniscience AccuracySource 39.0%41.4%Grok 4 leads
AA-Omniscience Hallucination RateSource 87.4%64.2%Grok 4 leads
MathGrok 4 wins
BenchmarkGemini 2.5 ProGrok 4Result
FrontierMath v2 (Tiers 1-3)Source 14.138%19.655%Grok 4 leads
FrontierMath v2 (Tier 4)Source 4.167%2.083%Gemini 2.5 Pro leads
Multimodal
BenchmarkGemini 2.5 ProGrok 4Result
AA-MMMU-ProSource 74.9%68.8%Gemini 2.5 Pro leads
Design Arena WebsiteSource 1199—Not comparable
Inst. Following
BenchmarkGemini 2.5 ProGrok 4Result
AA-IFBenchSource 48.7%53.7%Grok 4 leads
Frequently Asked Questions (2)

Which is better, Gemini 2.5 Pro or Grok 4?

Grok 4 is ahead on BenchLM's BenchAlign leaderboard, 60.42 to 57.25. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 14.138% and 19.655%.

Which is better for math, Gemini 2.5 Pro or Grok 4?

Grok 4 has the edge for math in this comparison, averaging 15.3 versus 11.6. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.

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Last updated: July 20, 2026

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