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Model comparison

Gemini 3.1 Pro vs o4-mini (high)

Data verified

Head-to-head evidence from 2 shared benchmark results across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.

55.3/100
Margin
5.3pts
← winning
49.98/100
1 category wins0 category wins

Public leaderboard positions: Gemini 3.1 Pro #83 (Estimated); o4-mini (high) #118 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 3.1 Pro and o4-mini (high) share 2 comparable benchmark results. 1 of 8 categories are comparable. 45 results are unique to Gemini 3.1 Pro; 0 to o4-mini (high).

Updated July 20, 2026
Shared results
2
Gemini 3.1 Pro only
45
o4-mini (high) only
0
Comparable categories
1 / 8

Pick Gemini 3.1 Pro if you want the stronger benchmark profile. o4-mini (high) only becomes the better choice if you want the stronger reasoning-first profile.

Confidence note. This is a partial-evidence comparison with 2 shared benchmark results 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 3.1 Pro is clearly ahead on the BenchAlign aggregate, 55.3 to 49.98. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Gemini 3.1 Pro's sharpest advantage is in mathematics, where it averages 31.8 against 20.2. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 36.900% to 24.828%.

o4-mini (high) is the reasoning model in the pair, while Gemini 3.1 Pro is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Gemini 3.1 Pro gives you the larger context window at 1M, compared with 200K for o4-mini (high).

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 o4-mini (high)
CategoryGemini 3.1 ProΔo4-mini (high)
MathGemini 3.1 Pro31.8Margin← 11.6o4-mini (high)20.2
ReasoningGemini 3.1 Pro77.1MarginNo overlapo4-mini (high)Not measured
MultimodalGemini 3.1 Pro82.6MarginNo overlapo4-mini (high)Not measured

Decisive benchmark drivers

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

More
A · Gemini 3.1 ProB · o4-mini (high)

  1. FrontierMath v2 (Tiers 1-3)

    Math
    Source ↗
    A 36.900%B 24.828%
    Winner: Gemini 3.1 ProΔ 12.1
    FrontierMath v2 (Tiers 1-3): Gemini 3.1 Pro scored 36.900%; o4-mini (high) scored 24.828%. Gemini 3.1 Pro wins this benchmark.

  2. FrontierMath v2 (Tier 4)

    Math
    Source ↗
    A 16.700%B 6.250%
    Winner: Gemini 3.1 ProΔ 10.5
    FrontierMath v2 (Tier 4): Gemini 3.1 Pro scored 16.700%; o4-mini (high) scored 6.250%. 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 Proo4-mini (high)Comparison
Input / output priceUSD per 1M tokensGemini 3.1 Pro$2 input / $12 outputo4-mini (high)Not availableA complete price comparison is not available.
Generation speedtokens per secondGemini 3.1 Pro109 tok/so4-mini (high)161 tok/so4-mini (high) has the higher measured throughput.
First-answer latencyseconds to first tokenGemini 3.1 Pro29.71 so4-mini (high)21.94 so4-mini (high) reaches the first token sooner.
Context windowmaximum listed tokensGemini 3.1 Pro1Mo4-mini (high)200KGemini 3.1 Pro lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGemini 3.1 Proo4-mini (high)Result
Claw-EvalSource 57.8%—Not comparable
DeepSearchQASource 69.7%—Not comparable
τ²-bench resultsSource 95.6%—Not comparable
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%—Not comparable
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 Proo4-mini (high)Result
LiveCodeBench ProSource 82.9%—Not comparable
React Native EvalsSource 78.9%—Not comparable
Vibe Code BenchSource 32.03%—Not comparable
AA Coding IndexSource 68.8%—Not comparable
AA-SciCodeSource 58.9%—Not comparable
Reasoning
BenchmarkGemini 3.1 Proo4-mini (high)Result
ARC-AGI-2Source 77.1%—Not comparable
AA-LCRSource 72.7%—Not comparable
CritPtSource 17.7%—Not comparable
Knowledge
BenchmarkGemini 3.1 Proo4-mini (high)Result
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%—Not comparable
AA-GPQA DiamondSource 94.1%—Not comparable
AA-HLESource 44.7%—Not comparable
AA-Omniscience IndexSource 32.9%—Not comparable
AA-Omniscience AccuracySource 55.3%—Not comparable
AA-Omniscience Hallucination RateSource 49.9%—Not comparable
MathGemini 3.1 Pro wins
BenchmarkGemini 3.1 Proo4-mini (high)Result
FrontierMath v2 (Tiers 1-3)Source 36.900%24.828%Gemini 3.1 Pro leads
FrontierMath v2 (Tier 4)Source 16.700%6.250%Gemini 3.1 Pro leads
Multilingual
BenchmarkGemini 3.1 Proo4-mini (high)Result
AA Global-MMLU-LiteSource 93.2%—Not comparable
Multimodal
BenchmarkGemini 3.1 Proo4-mini (high)Result
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%—Not comparable
Design Arena WebsiteSource 1284—Not comparable
Inst. Following
BenchmarkGemini 3.1 Proo4-mini (high)Result
AA-IFBenchSource 77.1%—Not comparable
Frequently Asked Questions (2)

Which is better, Gemini 3.1 Pro or o4-mini (high)?

Gemini 3.1 Pro is ahead on BenchLM's BenchAlign leaderboard, 55.3 to 49.98. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 36.900% and 24.828%.

Which is better for math, Gemini 3.1 Pro or o4-mini (high)?

Gemini 3.1 Pro has the edge for math in this comparison, averaging 31.8 versus 20.2. 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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