Noometry

Model comparison

Gemini 3.8 Flash vs Grok 4.7

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 53.1 on the Noometry Index.

Last verified . 39 shared benchmarks.

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

Grok 4.7 xAI

53.1

Rank #37 Confirmed

Summary

  • They share 39 benchmarks with published results for both. Gemini 3.8 Flash scores higher in 10 categories and Grok 4.7 in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 49.1.
  • The biggest single-benchmark swing is Chess Puzzles: 61% for Gemini 3.8 Flash and 38% for Grok 4.7.
  • Gemini 3.8 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $2 / $6 for Grok 4.7.
  • Gemini 3.8 Flash accepts more context: 1.05M tokens versus 500K.

Side by side

Gemini 3.8 FlashGrok 4.7
ProviderGooglexAI
Noometry Index61.853.1
Released2026-09-022026-09-21
WeightsProprietaryProprietary
Context window1.05M500K
Max output66K500K
Input $ / M tokens$0.75$2
Output $ / M tokens$3.75$6
Results tracked5039

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Category by category

Coding Gemini 3.8 Flash leads

Gemini 3.8 Flash: 59.2 (#15), Grok 4.7: 58.0 (#18)

BenchmarkGemini 3.8 FlashGrok 4.7
FrontierCode41.2%47.6%
CursorBench39.6%46.3%
LMArena WebDev15841639
FrontierSWE19.6%29.5%
SciCode56.6%57.8%
LMArena Coding15101427
DeepSWE73.8%—
WeirdML84.8%—
ALE-Bench1,270—

Agentic & Tool Use Gemini 3.8 Flash leads

Gemini 3.8 Flash: 41.8 (#21), Grok 4.7: 36.7 (#37)

BenchmarkGemini 3.8 FlashGrok 4.7
APEX-Agents64.3%54.6%
GDP.pdf23.4%22.8%
Vending-Bench 25,09410,537
Remote Labor Index5.8%—

Reasoning Gemini 3.8 Flash leads

Gemini 3.8 Flash: 76.9 (#5), Grok 4.7: 49.1 (#40)

BenchmarkGemini 3.8 FlashGrok 4.7
NYT Connections (extended)97.4%76.8%
CritPt18.3%18%
Chess Puzzles61%38%
LMArena Hard Prompts15081413
Mystery Game Puzzles47%29%
DTBench95.7%96%
LMCA52.9%49.4%
Epoch Capabilities Index156.71153.53
ARC-AGI-289.2%—
ARC-AGI-198.5%—
Surface Evolver Bench76.9%—

Math Gemini 3.8 Flash leads

Gemini 3.8 Flash: 65.3 (#28), Grok 4.7: 57.8 (#39)

BenchmarkGemini 3.8 FlashGrok 4.7
FrontierMath (Tiers 1-3)68.4%53%
FrontierMath Tier 422%17.1%
OTIS Mock AIME 2024-202598.9%98.1%
ProofBench48%34%
LMArena Math15281407

Knowledge Gemini 3.8 Flash leads

Gemini 3.8 Flash: 74.8 (#2), Grok 4.7: 62.8 (#22)

BenchmarkGemini 3.8 FlashGrok 4.7
GPQA Diamond95.4%92.7%
SimpleQA Verified69.7%56%
LMArena Expert15241422
Humanity's Last Exam44.5%—

Multimodal Gemini 3.8 Flash leads

Gemini 3.8 Flash: 40.7 (#45), Grok 4.7: 35.5 (#87)

BenchmarkGemini 3.8 FlashGrok 4.7
LMArena Vision13141228
Blueprint-Bench 238.6%32.5%
Furniture Assembly31.7%20.8%

Multilingual Gemini 3.8 Flash leads

Gemini 3.8 Flash: 58.0 (#5), Grok 4.7: 50.8 (#116)

BenchmarkGemini 3.8 FlashGrok 4.7
LMArena Non-English14911389
LMArena Chinese15541455
LMArena French14981455
LMArena Russian15151397
LMArena Spanish14851400
LMArena German1493—
LMArena Japanese1502—
LMArena Korean1459—

Instruction Following Gemini 3.8 Flash leads

Gemini 3.8 Flash: 78.0 (#13), Grok 4.7: 74.1 (#105)

BenchmarkGemini 3.8 FlashGrok 4.7
LMArena Instruction Following14901404

Long Context Gemini 3.8 Flash leads

Gemini 3.8 Flash: 46.3 (#24), Grok 4.7: 43.1 (#104)

BenchmarkGemini 3.8 FlashGrok 4.7
LMArena Longer Query15081413

Writing & Preference Gemini 3.8 Flash leads

Gemini 3.8 Flash: 72.2 (#15), Grok 4.7: 70.0 (#24)

BenchmarkGemini 3.8 FlashGrok 4.7
LMArena Text14991399
LMArena Creative Writing14921391
EQ-Bench Creative Writing17482007
LMArena Multi-Turn15011393

Frequently asked questions

Is Gemini 3.8 Flash better than Grok 4.7?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 53.1 on the Noometry Index.

Which is cheaper, Gemini 3.8 Flash or Grok 4.7?

Gemini 3.8 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; Grok 4.7 lists at $2 and $6.

Is Gemini 3.8 Flash or Grok 4.7 better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 58.0 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 500K.

How many benchmarks do Gemini 3.8 Flash and Grok 4.7 share?

39 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Grok 4.7 has 39.

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