Noometry

Model comparison

Granite 3.1 8b Instruct vs Grok 4.6

Grok 4.6 is the stronger model overall, scoring 56.9 to 32.4 on the Noometry Index.

Last verified . 12 shared benchmarks.

Granite 3.1 8b Instruct IBM

32.4

Rank #258 Confirmed

Grok 4.6 xAI

56.9

Rank #21 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Granite 3.1 8b Instruct scores higher in 0 categories and Grok 4.6 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.6 leads 61.4 to 22.1.
  • Granite 3.1 8b Instruct has downloadable open weights; the other is API-only.

Side by side

Granite 3.1 8b InstructGrok 4.6
ProviderIBMxAI
Noometry Index32.456.9
Released—2026-08-12
WeightsOpenProprietary
Context window—500K
Max output—500K
Input $ / M tokens—$2
Output $ / M tokens—$6
Results tracked1349

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Category by category

Coding Grok 4.6 leads

Granite 3.1 8b Instruct: 34.5 (#233), Grok 4.6: 58.5 (#16)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Coding11861465
DeepSWE—67.5%
FrontierCode—48%
CursorBench—41.4%
LMArena WebDev—1617
FrontierSWE—25.3%
SciCode—56.5%
WeirdML—67.3%
ALE-Bench—1,508

Agentic & Tool Use Grok 4.6 leads

Granite 3.1 8b Instruct: 24.1 (#120), Grok 4.6: 39.4 (#27)

BenchmarkGranite 3.1 8b InstructGrok 4.6
APEX-Agents—65.3%
Berkeley Function Calling Leaderboard27.1%—
GDP.pdf—17.2%
Vending-Bench 2—9,047

Reasoning Grok 4.6 leads

Granite 3.1 8b Instruct: 22.1 (#207), Grok 4.6: 61.4 (#20)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Hard Prompts11451447
ARC-AGI-2—67.1%
SimpleBench—75.9%
NYT Connections (extended)—80%
ARC-AGI-1—87.5%
CritPt—19.7%
Chess Puzzles—40%
EBR-Bench—30.5%
Mystery Game Puzzles—34%
DTBench—97.3%
LMCA—48.5%
Epoch Capabilities Index—156.44

Math Grok 4.6 leads

Granite 3.1 8b Instruct: 33.0 (#209), Grok 4.6: 67.0 (#24)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Math11521423
FrontierMath (Tiers 1-3)—66%
FrontierMath Tier 4—31.7%
OTIS Mock AIME 2024-2025—99.2%
ProofBench—51%

Knowledge Grok 4.6 leads

Granite 3.1 8b Instruct: 31.1 (#220), Grok 4.6: 63.3 (#20)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Expert11421467
GPQA Diamond—94%
SimpleQA Verified—49.3%

Multimodal Not comparable

Granite 3.1 8b Instruct: —, Grok 4.6: 43.6 (#23)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Vision—1263
Blueprint-Bench 2—33.2%
Furniture Assembly—40%
LMArena Document—1452

Multilingual Grok 4.6 leads

Granite 3.1 8b Instruct: 30.9 (#260), Grok 4.6: 53.0 (#74)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Non-English10991420
LMArena Chinese11451480
LMArena Russian10921422
LMArena French—1461
LMArena German—1431
LMArena Japanese—1376
LMArena Korean—1397
LMArena Spanish—1404

Instruction Following Grok 4.6 leads

Granite 3.1 8b Instruct: 58.6 (#259), Grok 4.6: 75.4 (#63)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Instruction Following11311431

Long Context Grok 4.6 leads

Granite 3.1 8b Instruct: 35.2 (#241), Grok 4.6: 44.5 (#66)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Longer Query11621454

Writing & Preference Grok 4.6 leads

Granite 3.1 8b Instruct: 35.5 (#266), Grok 4.6: 62.3 (#80)

BenchmarkGranite 3.1 8b InstructGrok 4.6
LMArena Text11501428
LMArena Creative Writing11291428
LMArena Multi-Turn11081425

Frequently asked questions

Is Granite 3.1 8b Instruct better than Grok 4.6?

Grok 4.6 is the stronger model overall, scoring 56.9 to 32.4 on the Noometry Index.

Is Granite 3.1 8b Instruct or Grok 4.6 better for coding?

Grok 4.6 scores higher on coding benchmarks: 58.5 versus 34.5 in the Noometry coding category.

How many benchmarks do Granite 3.1 8b Instruct and Grok 4.6 share?

12 benchmarks have published results for both models. Granite 3.1 8b Instruct has 13 scored results on Noometry and Grok 4.6 has 49.

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