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Head-to-head comparison

Gemini 3.1 Pro Preview vs. Grok 4.5

Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.

shared result series
149
distinct benchmarks
25
latest retrieval
2026-09-04

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Specifications

General specifications

Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.

Specifications for Gemini 3.1 Pro Preview and Grok 4.5
AttributeGemini 3.1 Pro PreviewGrok 4.5
ProviderGooglexAI
ReleasedFeb 19, 2026Jul 16, 2026
AvailabilityPreviewActive
Model typeProprietaryProprietary
ParametersNot publishedNot published
ArchitectureNot publishedNot published
Context window1,048,576 tokens500,000 tokens
Knowledge cutoffNot publishedFebruary 1, 2026
Technical sourcesModelModel

Pricing

API pricing compared

The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

API pricing for Gemini 3.1 Pro Preview and Grok 4.5
Price typeGemini 3.1 Pro PreviewGrok 4.5
API input$2 ≤200K / $4 >200K$2 ≤200K / $4 >200K
API output$12 ≤200K / $18 >200K$6 ≤200K / $12 >200K
Cache read$0.2 ≤200K / $0.4 >200K$0.3 ≤200K / $0.6 >200K
Cache write (5 min.)Not listedNot listed
Cache write (1 hr.)Not listedNot listed
Price verified07/30/2026 Source08/11/2026 Source
Gemini 3.1 Pro PreviewGrok 4.5
API inputUSD per 1M tokens, base tier
Gemini 3.1 Pro PreviewTie$2
Grok 4.5Tie$2
API outputUSD per 1M tokens, base tier
Gemini 3.1 Pro Preview$12
Grok 4.5Lower price$6
Cache readUSD per 1M tokens, base tier
Gemini 3.1 Pro PreviewLower price$0.2
Grok 4.5$0.3

Key to the marks:better valuebetter, but not conclusivetie

Pricing by provider

Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.

Provider pricing for Gemini 3.1 Pro Preview and Grok 4.5
ModelProviderPurchase route and tariffInput per 1M tokensOutput per 1M tokensSource
Gemini 3.1 Pro PreviewGoogleDirect from developerUp to 200,000 context tokens$2$12Source07/30/2026
GoogleDirect from developerAbove 200,000 context tokens$4$18Source07/30/2026
GoogleVia OpenRoutergoogle-vertex/global$2$12Source09/07/2026
GoogleVia OpenRoutergoogle-vertex/global/flexLowest listed price: $1Lowest listed price: $6Source09/07/2026
GoogleVia OpenRoutergoogle-vertex/global/priority$3.6$21.6Source09/07/2026
Google AI StudioVia OpenRoutergoogle-ai-studio$2$12Source09/07/2026
Google AI StudioVia OpenRoutergoogle-ai-studio/flexLowest listed price: $1Lowest listed price: $6Source09/07/2026
Google AI StudioVia OpenRoutergoogle-ai-studio/priority$3.6$21.6Source09/07/2026
Grok 4.5xAIDirect from developerUp to 200,000 context tokensLowest listed price: $2Lowest listed price: $6Source08/11/2026
xAIDirect from developerAbove 200,000 context tokens$4$12Source08/11/2026
xAIVia OpenRouterxaiLowest listed price: $2Lowest listed price: $6Source09/07/2026
xAIVia OpenRouterxai/priority$4$12Source09/07/2026
xAIVia OpenRouterxai/zdrLowest listed price: $2Lowest listed price: $6Source09/07/2026
xAIVia OpenRouterxai/zdr/priority$4$12Source09/07/2026

Performance

Shared benchmarks

Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.

Capability profile from matched benchmarks

Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.

255075100CodingReasoningMathematicsKnowledgeFinanceLegalAgentic tasksMultimodal
Gemini 3.1 Pro Preview
Grok 4.5
Coding: 80.8 / 99.8 (6 benchmark families)
Reasoning: 100 / 98.3 (2 benchmark families)
Mathematics: 91.8 / 99.8 (2 benchmark families)
Knowledge: 100 / 88.9 (3 benchmark families)
Finance: 97.3 / 97.8 (6 benchmark families)
Legal: 63.6 / 99.2 (4 benchmark families)
Agentic tasks: 100 / 95.8 (1 benchmark family)
Multimodal: 100 / 70.1 (1 benchmark family)

55 matched rows from 25 benchmark families were considered. The radar shows 8 of 12 comparable categories.

Gemini 3.1 Pro PreviewGrok 4.5
Code MigrationOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview17.313 %
Grok 4.5Winner36.596 %
CorpFin v2Overall. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview64.491 %
Grok 4.5Winner67.405 %
EMBOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview52.616 %
Grok 4.5Winner52.911 %
Finance Agent (v2)Overall. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview42.982 %
Grok 4.5Winner48.349 %
GPQA DiamondOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro PreviewWinner95.454 %
Grok 4.592.929 %
Harvey's Legal Agent BenchmarkOverall · Task fully resolved. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview0 %
Grok 4.5Winner12.917 %
Legal Research BenchOverall · All-pass. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview20.673 %
Grok 4.5Winner37.981 %
LegalBenchOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro PreviewWinner87.398 %
Grok 4.585.965 %
LiveCodeBench v6Overall. Higher is better. No documented setup difference
Gemini 3.1 Pro PreviewWinner88.485 %
Grok 4.587.351 %
LMArena Text, Style ControlOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro PreviewWinner1,486.746
Grok 4.51,470.015
MedCodeOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro PreviewWinner59.062 %
Grok 4.543.291 %
MedScribeOverall. Higher is better. No documented setup difference
Gemini 3.1 Pro Preview76.114 %
Grok 4.5Winner86.884 %

Key to the marks:better valuebetter, but not conclusivetie

Benchmark scores for Gemini 3.1 Pro Preview and Grok 4.5
Benchmark and taskGemini 3.1 Pro PreviewGrok 4.5Source
Code MigrationOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
17.313 %
Winner36.596 %
Vals AI
Source details
Data as of: 09/03/2026
CorpFin v2Overall
Test details
No documented difference in the test setupVersion: 2Metric: accuracyScoring: Higher is better
64.491 %
Winner67.405 %
Vals AI
Source details
Data as of: 08/12/2026
EMBOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
52.616 %
Winner52.911 %
Vals AI
Source details
Data as of: 09/03/2026
Finance Agent (v2)Overall
Test details
No documented difference in the test setupVersion: 2Metric: accuracyScoring: Higher is better
42.982 %
Winner48.349 %
Vals AI
Source details
Data as of: 09/03/2026
GPQA DiamondOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner95.454 %
92.929 %
Vals AI
Source details
Data as of: 09/01/2026
Harvey's Legal Agent BenchmarkOverall · Task fully resolved
Test details
No documented difference in the test setupVersion: 1Metric: task resolution rateScoring: Higher is better
0 %
Winner12.917 %
Vals AI
Source details
Data as of: 09/03/2026
Legal Research BenchOverall · All-pass
Test details
No documented difference in the test setupVersion: 1Metric: all-pass rateScoring: Higher is better
20.673 %
Winner37.981 %
Vals AI
Source details
Data as of: 09/03/2026
LegalBenchOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner87.398 %
85.965 %
Vals AI
Source details
Data as of: 09/01/2026
LiveCodeBench v6Overall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner88.485 %
87.351 %
Vals AI
Source details
Data as of: 09/01/2026
LMArena Text, Style ControlOverall
Test details
No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control
Grok 4.5: Snapshot: grok-4.5, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 102,763 anonymous pairwise votes.Grok 4.5: Style-controlled Arena rating from 25,873 anonymous pairwise votes.
Winner1,486.746
95% confidence interval: ±3.217The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,470.015
95% confidence interval: ±4.921The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.		LMArena
Source details
Data as of: 09/01/2026
MedCodeOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner59.062 %
43.291 %
Vals AI
Source details
Data as of: 09/03/2026
MedScribeOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
76.114 %
Winner86.884 %
Vals AI
Source details
Data as of: 09/03/2026
MMLU-ProOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner90.987 %
89.216 %
Vals AI
Source details
Data as of: 09/01/2026
MMMU-ProOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner88.208 %
61.792 %
Vals AI
Source details
Data as of: 09/01/2026
MortgageTaxOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner69.396 %
61.804 %
Vals AI
Source details
Data as of: 09/01/2026
ProgramBenchOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Tie0 %
Tie0 %
Vals AI
Source details
Data as of: 09/01/2026
ProofBenchOverall
Test details
No documented difference in the test setupVersion: 1.1Metric: accuracyScoring: Higher is better
26 %
Winner31 %
Vals AI
Source details
Data as of: 09/01/2026
SAGEOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
Winner48.677 %
34.967 %
Vals AI
Source details
Data as of: 09/03/2026
SimpleQA Verified v2Kaggle score
Test details
No documented difference in the test setupVersion: Kaggle leaderboard 2026-08-03Metric: Kaggle leaderboard scoreScoring: Higher is better1,000 verified prompts without tools. Kaggle independently reproduced the results.
Winner77.5 %
95% confidence interval: ±2.6
53.8 %
95% confidence interval: ±3.2		Kaggle
Source details
Data as of: 08/03/2026
SWE-bench VerifiedOverall
Test details
No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better
78.8 %
Winner86.6 %
Vals AI
Source details
Data as of: 09/01/2026
TaxEval v2Overall
Test details
No documented difference in the test setupVersion: 2Metric: accuracyScoring: Higher is better
Winner72.882 %
71.668 %
Vals AI
Source details
Data as of: 09/01/2026
Terminal-Bench 2.1Overall
Test details
No documented difference in the test setupVersion: 2.1Metric: accuracyScoring: Higher is better
Winner70.787 %
67.79 %
Vals AI
Source details
Data as of: 09/03/2026
Vals IndexOverall
Test details
No documented difference in the test setupVersion: 2Metric: weighted index scoreScoring: Higher is better
41.903 %
Winner51.528 %
Vals AI
Source details
Data as of: 09/03/2026
Vals Multimodal IndexOverall
Test details
No documented difference in the test setupVersion: 1.2Metric: weighted index scoreScoring: Higher is better
56.068 %
Winner63.42 %
Vals AI
Source details
Data as of: 08/11/2026
Vibe Code Bench v1.1Overall
Test details
No documented difference in the test setupVersion: 1.1Metric: accuracyScoring: Higher is betterSettings: Harness: OpenHands
32.034 %
Winner69.002 %
Vals AI
Source details
Data as of: 09/03/2026
Code MigrationCLI
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
10.833 %
Higher measured value25.461 %
Vals AI
Source details
Data as of: 08/09/2026
CorpFin v2Exact Pages
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
60.839 %
Higher measured value66.317 %
Vals AI
Source details
Data as of: 08/06/2026
EMBComps
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value44.505 %
39.489 %
Vals AI
Source details
Data as of: 08/06/2026
Finance Agent (v2)Adjustments
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
38.361 %
Higher measured value38.568 %
Vals AI
Source details
Data as of: 08/06/2026
GPQA DiamondFew-Shot CoT
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,535 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value95.96 %
92.929 %
Vals AI
Source details
Data as of: 08/09/2026
Legal Research BenchAdministrative / Regulatory · All-pass
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: all-pass rateScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
24.242 %
Higher measured value51.515 %
Vals AI
Source details
Data as of: 08/06/2026
LegalBenchConclusion Tasks
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
89.257 %
Higher measured value89.507 %
Vals AI
Source details
Data as of: 08/09/2026
LiveCodeBench v6Easy
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
No direct winner99.068 %
No direct winner99.068 %
Vals AI
Source details
Data as of: 08/09/2026
LMArena Text, Style ControlBusiness, management and finance
Test details
No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control
Grok 4.5: Snapshot: grok-4.5, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 20,283 anonymous pairwise votes.Grok 4.5: Style-controlled Arena rating from 5,122 anonymous pairwise votes.
No clear lead1,476.52
95% confidence interval: ±5.472The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,465.734
95% confidence interval: ±8.936The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.		LMArena
Source details
Data as of: 09/01/2026
MMLU-ProBiology
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,535 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value95.258 %
94.282 %
Vals AI
Source details
Data as of: 08/09/2026
MortgageTaxNumerical Extraction
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value76.391 %
62.798 %
Vals AI
Source details
Data as of: 08/09/2026
ProgramBenchAlmost Resolved
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
1 %
Higher measured value4.5 %
Vals AI
Source details
Data as of: 08/09/2026
SAGEAutomata
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 30,000 tokens
Grok 4.5: Reasoning: high, Temperature: 1, Top P: 0.95, Output limit: 30,000 tokens
32.143 %
Higher measured value32.54 %
Vals AI
Source details
Data as of: 08/09/2026
SWE-bench Verified<15 min fix
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
88.66 %
Higher measured value93.814 %
Vals AI
Source details
Data as of: 08/08/2026
TaxEval v2Correctness
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,535 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
60.749 %
Higher measured value62.551 %
Vals AI
Source details
Data as of: 08/09/2026
Terminal-Bench 2.1Easy
Test details
Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
No direct winner91.667 %
No direct winner91.667 %
Vals AI
Source details
Data as of: 08/06/2026
Vals IndexCorpFin v2
Test details
Test setup not documented as identicalNo direct winnerVersion: 1.2Metric: benchmark scoreScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
65.734 %
Higher measured value68.415 %
Vals AI
Source details
Data as of: 08/09/2026
Vals Multimodal IndexCorpFin v2
Test details
Test setup not documented as identicalNo direct winnerVersion: 1.2Metric: benchmark scoreScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
65.734 %
Higher measured value68.415 %
Vals AI
Source details
Data as of: 08/09/2026
Code MigrationCOBOL
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
36.753 %
Higher measured value70 %
Vals AI
Source details
Data as of: 08/09/2026
CorpFin v2Max Fitting Context
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
66.9 %
Higher measured value67.483 %
Vals AI
Source details
Data as of: 08/06/2026
EMBDataroom
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value79.17 %
64.953 %
Vals AI
Source details
Data as of: 08/06/2026
Finance Agent (v2)All-Pass
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
30.879 %
Higher measured value36.743 %
Vals AI
Source details
Data as of: 08/06/2026
GPQA DiamondZero-Shot CoT
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,535 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value94.949 %
92.929 %
Vals AI
Source details
Data as of: 08/09/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: weighted partial-credit scoreScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
79.215 %
Higher measured value88.75 %
Vals AI
Source details
Data as of: 08/06/2026
LegalBenchInterpretation Tasks
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value83.823 %
83.22 %
Vals AI
Source details
Data as of: 08/09/2026
LiveCodeBench v6Hard
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value76.571 %
73.429 %
Vals AI
Source details
Data as of: 08/09/2026
LMArena Text, Style ControlChinese
Test details
No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control
Grok 4.5: Snapshot: grok-4.5, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 6,195 anonymous pairwise votes.Grok 4.5: Style-controlled Arena rating from 1,737 anonymous pairwise votes.
No clear lead1,530.803
95% confidence interval: ±8.555The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.
1,512.8
95% confidence interval: ±15.002The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.		LMArena
Source details
Data as of: 09/01/2026
MMLU-ProBusiness
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,535 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value93.409 %
93.283 %
Vals AI
Source details
Data as of: 08/09/2026
MortgageTaxSemantic Extraction
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value62.401 %
60.811 %
Vals AI
Source details
Data as of: 08/09/2026
ProgramBenchFully Resolved
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
No direct winner0 %
No direct winner0 %
Vals AI
Source details
Data as of: 08/09/2026
SAGECalculus
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 30,000 tokens
Grok 4.5: Reasoning: high, Temperature: 1, Top P: 0.95, Output limit: 30,000 tokens
Higher measured value78.395 %
59.568 %
Vals AI
Source details
Data as of: 08/09/2026
SWE-bench Verified>4 hours
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
33.333 %
Higher measured value66.667 %
Vals AI
Source details
Data as of: 08/08/2026
TaxEval v2Stepwise Reasoning
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,535 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value85.016 %
80.785 %
Vals AI
Source details
Data as of: 08/09/2026
Terminal-Bench 2.1Hard
Test details
Test setup not documented as identicalNo direct winnerVersion: 2.1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value60 %
56.667 %
Vals AI
Source details
Data as of: 08/06/2026
Vals IndexFinance Agent v2
Test details
Test setup not documented as identicalNo direct winnerVersion: 1.2Metric: benchmark scoreScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
42.968 %
Higher measured value48.751 %
Vals AI
Source details
Data as of: 08/09/2026
Vals Multimodal IndexFinance Agent v2
Test details
Test setup not documented as identicalNo direct winnerVersion: 1.2Metric: benchmark scoreScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
42.968 %
Higher measured value48.751 %
Vals AI
Source details
Data as of: 08/09/2026
Code MigrationCode Quality
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: mean reviewer code-quality ratingScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
2.538 / 5
Higher measured value4.078 / 5
Vals AI
Source details
Data as of: 08/09/2026
CorpFin v2Shared Max Context
Test details
Test setup not documented as identicalNo direct winnerVersion: 2Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
65.734 %
Higher measured value68.415 %
Vals AI
Source details
Data as of: 08/06/2026
EMBDCF
Test details
Test setup not documented as identicalNo direct winnerVersion: 1Metric: accuracyScoring: Higher is betterGemini 3.1 Pro Preview: Reasoning: high, Temperature: 1, Output limit: 65,536 tokens
Grok 4.5: Reasoning: high, Temperature: 0.7, Top P: 0.95
Higher measured value46.388 %
41.455 %
Vals AI
Source details
Data as of: 08/06/2026

Key to the marks:better valuebetter, but not conclusivetie

How to read this comparison

Winning one benchmark is not an overall verdict

Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.

The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.

Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.

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