Noometry

Model comparison

Granite 3.0 8b Instruct vs Grok 4.5

Grok 4.5 is the stronger model overall, scoring 55.0 to 31.6 on the Noometry Index.

Last verified . 12 shared benchmarks.

Granite 3.0 8b Instruct IBM

31.6

Rank #270 Confirmed

Grok 4.5 xAI

55.0

Rank #25 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Granite 3.0 8b Instruct scores higher in 0 categories and Grok 4.5 in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.5 leads 56.1 to 20.9.
  • Granite 3.0 8b Instruct has downloadable open weights; the other is API-only.

Side by side

Granite 3.0 8b InstructGrok 4.5
ProviderIBMxAI
Noometry Index31.655.0
Released—2026-07-08
WeightsOpenProprietary
Context window—500K
Max output—500K
Input $ / M tokens—$2
Output $ / M tokens—$6
Results tracked1452

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Category by category

Coding Grok 4.5 leads

Granite 3.0 8b Instruct: 29.7 (#301), Grok 4.5: 52.2 (#35)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Coding11121474
DeepSWE—53.8%
FrontierCode—42.4%
LMArena WebDev—1553
SciCode—54.1%
WeirdML—46.4%
BigCodeBench Instruct29.3%—
BigCodeBench Complete35.4%—
ALE-Bench—1,309

Agentic & Tool Use Not comparable

Granite 3.0 8b Instruct: —, Grok 4.5: 44.4 (#17)

BenchmarkGranite 3.0 8b InstructGrok 4.5
APEX-Agents—56.2%
τ²-bench Banking—47.9%
PostTrainBench—23.4%
GBAEval—65.4%
GDP.pdf—14%
LMArena Search—1213
Vending-Bench 2—3,887

Reasoning Grok 4.5 leads

Granite 3.0 8b Instruct: 20.9 (#230), Grok 4.5: 56.1 (#25)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Hard Prompts10921462
ARC-AGI-2—52.6%
SimpleBench—70%
Kagi LLM Benchmark—83.5%
NYT Connections (extended)—79.9%
ARC-AGI-1—87.2%
CritPt—15.4%
Chess Puzzles—36%
DTBench—96.5%
LMCA—45.2%
Surface Evolver Bench—74.4%
Epoch Capabilities Index—153.92

Math Grok 4.5 leads

Granite 3.0 8b Instruct: 32.8 (#210), Grok 4.5: 60.9 (#35)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Math11431459
FrontierMath (Tiers 1-3)—57.2%
FrontierMath Tier 4—24.4%
OTIS Mock AIME 2024-2025—97.8%
ProofBench—31%

Knowledge Grok 4.5 leads

Granite 3.0 8b Instruct: 29.6 (#236), Grok 4.5: 62.3 (#24)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Expert10871466
GPQA Diamond—93.4%
SimpleQA Verified—48.3%

Multimodal Not comparable

Granite 3.0 8b Instruct: —, Grok 4.5: 37.6 (#72)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Vision—1288
Blueprint-Bench 2—27.3%
Furniture Assembly—22.5%
LMArena Document—1452

Multilingual Grok 4.5 leads

Granite 3.0 8b Instruct: 27.2 (#276), Grok 4.5: 54.4 (#42)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Non-English10371440
LMArena Chinese10631496
LMArena Russian10601448
LMArena French—1456
LMArena German—1446
LMArena Japanese—1428
LMArena Korean—1404
LMArena Spanish—1450

Instruction Following Grok 4.5 leads

Granite 3.0 8b Instruct: 56.0 (#276), Grok 4.5: 76.0 (#48)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Instruction Following10881446

Long Context Grok 4.5 leads

Granite 3.0 8b Instruct: 34.0 (#252), Grok 4.5: 44.8 (#56)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Longer Query11221463

Writing & Preference Grok 4.5 leads

Granite 3.0 8b Instruct: 31.1 (#285), Grok 4.5: 65.8 (#42)

BenchmarkGranite 3.0 8b InstructGrok 4.5
LMArena Text10961448
LMArena Creative Writing10711442
LMArena Multi-Turn10631456
EQ-Bench Creative Writing—1579

Frequently asked questions

Is Granite 3.0 8b Instruct better than Grok 4.5?

Grok 4.5 is the stronger model overall, scoring 55.0 to 31.6 on the Noometry Index.

Is Granite 3.0 8b Instruct or Grok 4.5 better for coding?

Grok 4.5 scores higher on coding benchmarks: 52.2 versus 29.7 in the Noometry coding category.

How many benchmarks do Granite 3.0 8b Instruct and Grok 4.5 share?

12 benchmarks have published results for both models. Granite 3.0 8b Instruct has 14 scored results on Noometry and Grok 4.5 has 52.

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