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 53.1 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 . 36 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #23 Confirmed

Grok 4.7 xAI

53.1

Rank #37 Confirmed

Summary

  • They share 36 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 8 categories and Grok 4.7 in 2 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 49.1.
  • 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 Index56.753.1
Released2026-02-192026-09-21
WeightsProprietaryProprietary
Context window1.05M500K
Max output66K500K
Input $ / M tokens$2$2
Output $ / M tokens$12$6
Results tracked7139

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Category by category

Coding Grok 4.7 leads

Gemini 3.1 Pro Preview: 42.5 (#99), Grok 4.7: 58.0 (#18)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena WebDev14471639
SciCode58.9%57.8%
LMArena Coding14841427
SWE-bench Verified75.6%—
DeepSWE11.7%—
FrontierCode—47.6%
CursorBench—46.3%
FrontierSWE—29.5%
GSO22.6%—
WeirdML72.1%—
MirrorCode8.9%—
ALE-Bench1,161—
AlgoTune2.02—

Agentic & Tool Use Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 37.7 (#34), Grok 4.7: 36.7 (#37)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
APEX-Agents35.3%54.6%
GDP.pdf17%22.8%
Vending-Bench 23,77410,537
Terminal-Bench80.2%—
τ²-bench Banking26%—
DeepResearch Bench47.8%—
PostTrainBench22%—
BALROG57%—
ExploitBench26.1%—
GBAEval0.8%—
LMArena Search1211—
METR Time Horizons77%—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#12), Grok 4.7: 49.1 (#40)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
NYT Connections (extended)97.4%76.8%
CritPt17.7%18%
Chess Puzzles55%38%
LMArena Hard Prompts14851413
Mystery Game Puzzles34%29%
DTBench97.1%96%
LMCA53.8%49.4%
Epoch Capabilities Index154.77153.53
ARC-AGI-277.1%—
SimpleBench79.6%—
ARC-AGI-198%—
EnigmaEval36.8%—
Thematic Generalization79.4%—
EBR-Bench14.3%—
ForecastBench59—

Math Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 62.1 (#34), Grok 4.7: 57.8 (#39)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
FrontierMath (Tiers 1-3)59.6%53%
FrontierMath Tier 426.8%17.1%
OTIS Mock AIME 2024-202595.6%98.1%
ProofBench26%34%
LMArena Math14851407
MathArena Final-Answer Competitions86.5%—
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: 62.8 (#22)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
GPQA Diamond94.4%92.7%
SimpleQA Verified73.5%56%
LMArena Expert14851422
Humanity's Last Exam46.4%—
Vectara Hallucination Rate10.4%—

Multimodal Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 37.9 (#69), Grok 4.7: 35.5 (#87)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Vision12961228
Blueprint-Bench 226.5%32.5%
Furniture Assembly26.7%20.8%
LMArena Document1444—

Multilingual Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 57.0 (#12), Grok 4.7: 50.8 (#116)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Non-English14771389
LMArena Chinese15291455
LMArena French14871455
LMArena Russian14981397
LMArena Spanish14791400
LMArena German1491—
LMArena Japanese1493—
LMArena Korean1455—

Instruction Following Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 77.0 (#32), Grok 4.7: 74.1 (#105)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Instruction Following14661404

Long Context Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 47.4 (#18), Grok 4.7: 43.1 (#104)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Longer Query14831413
CL-bench20.8%—
CL-bench Life16.9%—

Writing & Preference Grok 4.7 leads

Gemini 3.1 Pro Preview: 66.1 (#37), Grok 4.7: 70.0 (#24)

BenchmarkGemini 3.1 Pro PreviewGrok 4.7
LMArena Text14811399
LMArena Creative Writing14821391
EQ-Bench Creative Writing14912007
LMArena Multi-Turn14881393
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 53.1 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: 58.0 versus 42.5 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?

36 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Grok 4.7 has 39.

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