Noometry

Model comparison

Gemini 3.1 Pro Preview vs Grok 4.7

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 46.6 on the Noometry Index. Grok 4.7 costs 1.5× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Last verified . 19 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #20 Confirmed

Grok 4.7 xAI

46.6

Rank #56 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 7 categories and Grok 4.7 in 2 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 3.1 Pro Preview leads 71.8 to 38.7.
  • The biggest single-benchmark swing is NYT Connections (extended): 97.4% for Gemini 3.1 Pro Preview and 76.8% for Grok 4.7.
  • Grok 4.7 is cheaper at $2 / $6 per million input/output tokens, against $2 / $12 for Gemini 3.1 Pro Preview.
  • Gemini 3.1 Pro Preview accepts more context: 1.05M tokens versus 500K.

Side by side

Gemini 3.1 Pro PreviewGrok 4.7
ProviderGooglexAI
Noometry Index56.746.6
Released2026-02-192026-09-21
WeightsProprietaryProprietary
Context window1.05M500K
Max output66K500K
Input $ / M tokens$2$2
Output $ / M tokens$12$6
Results tracked7121

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Category by category

Coding Grok 4.7 leads

Gemini 3.1 Pro Preview: 42.7 (#88), Grok 4.7: 55.0 (#23)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena WebDev14461636
SciCode58.9%57.4%
LMArena Coding14831423
SWE-bench Verified75.6%—
DeepSWE11.7%—
CursorBench—46.3%
FrontierSWE—29.5%
GSO22.6%—
WeirdML72.1%—
MirrorCode8.9%—
ALE-Bench1,161—
AlgoTune2.02—

Agentic & Tool Use Not comparable

Gemini 3.1 Pro Preview: 37.7 (#33), Grok 4.7: —

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
Terminal-Bench80.2%—
APEX-Agents35.3%—
τ²-bench Banking26%—
DeepResearch Bench47.8%—
PostTrainBench22%—
BALROG57%—
ExploitBench26.1%—
GBAEval0.8%—
GDP.pdf17%—
LMArena Search1211—
METR Time Horizons77%—
Vending-Bench 23,774—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#9), Grok 4.7: 40.1 (#49)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
NYT Connections (extended)97.4%76.8%
CritPt17.7%17.7%
LMArena Hard Prompts14841409
ARC-AGI-277.1%—
SimpleBench79.6%—
ARC-AGI-198%—
Chess Puzzles55%—
EnigmaEval36.8%—
Thematic Generalization79.4%—
EBR-Bench14.3%—
Mystery Game Puzzles34%—
DTBench97.1%—
LMCA53.8%—
Epoch Capabilities Index154.92—
ForecastBench59—

Math Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 61.8 (#28), Grok 4.7: 41.1 (#73)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
ProofBench26%34%
LMArena Math14851393
FrontierMath (Tiers 1-3)59.6%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions86.5%—
OTIS Mock AIME 2024-202595.6%—
FrontierMath (Feb 2025 set)36.9%—
FrontierMath Tier 4 (v1)16.7%—

Knowledge Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.8 (#3), Grok 4.7: 38.7 (#130)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Expert14841413
GPQA Diamond94.4%—
Humanity's Last Exam46.4%—
SimpleQA Verified73.5%—
Vectara Hallucination Rate10.4%—

Multimodal Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 38.1 (#60), Grok 4.7: 28.8 (#107)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
Furniture Assembly26.7%20.8%
LMArena Vision1296—
Blueprint-Bench 226.5%—
LMArena Document1444—

Multilingual Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 57.1 (#11), Grok 4.7: 51.2 (#108)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Non-English14751392
LMArena Chinese15281476
LMArena Russian14961396
LMArena French1488—
LMArena German1491—
LMArena Japanese1494—
LMArena Korean1458—
LMArena Spanish1480—

Instruction Following Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 77.1 (#31), Grok 4.7: 74.3 (#98)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Instruction Following14651406

Long Context Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 47.3 (#17), Grok 4.7: 43.2 (#97)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Longer Query14821416
CL-bench20.8%—
CL-bench Life16.9%—

Writing & Preference Grok 4.7 leads

Gemini 3.1 Pro Preview: 66.3 (#36), Grok 4.7: 70.1 (#23)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Text14801397
LMArena Creative Writing14821391
EQ-Bench Creative Writing14912007
LMArena Multi-Turn14861389
EQ-Bench 41142—

Frequently asked questions

Is Gemini 3.1 Pro Preview better than Grok 4.7?

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 46.6 on the Noometry Index. Grok 4.7 costs 1.5× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.1 Pro Preview or Grok 4.7?

Grok 4.7 is cheaper. It lists at $2 per million input tokens and $6 per million output tokens; Gemini 3.1 Pro Preview lists at $2 and $12.

Is Gemini 3.1 Pro Preview or Grok 4.7 better for coding?

Grok 4.7 scores higher on coding benchmarks: 55.0 versus 42.7 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.1 Pro Preview does, with 1.05M tokens against 500K.

How many benchmarks do Gemini 3.1 Pro Preview and Grok 4.7 share?

19 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Grok 4.7 has 21.

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