Model comparison

Granite 3.0 8b Instruct vs Grok 4.20 (Non-Reasoning)

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 31.6 on the Noometry Index.

Last verified . 12 shared benchmarks.

Granite 3.0 8b Instruct IBM

31.6

Rank #270 Confirmed

Grok 4.20 (Non-Reasoning) xAI

48.6

Rank #54 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Granite 3.0 8b Instruct scores higher in 0 categories and Grok 4.20 (Non-Reasoning) in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Grok 4.20 (Non-Reasoning) leads 65.7 to 31.1.
  • Granite 3.0 8b Instruct has downloadable open weights; the other is API-only.

Side by side

Granite 3.0 8b Instruct and Grok 4.20 (Non-Reasoning) specifications
Granite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
ProviderIBMxAI
Noometry Index31.648.6
Released—2026-02-17
WeightsOpenProprietary
Context window—1M
Max output—30K
Input $ / M tokens—$1.25
Output $ / M tokens—$2.50
Results tracked1446

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Category by category

Coding Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 29.7 (#301), Grok 4.20 (Non-Reasoning): 42.1 (#112)

Coding benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Coding11121459
LMArena WebDev—1375
WeirdML—52.3%
BigCodeBench Instruct29.3%—
BigCodeBench Complete35.4%—
ALE-Bench—1,150

Agentic & Tool Use Not comparable

Granite 3.0 8b Instruct: —, Grok 4.20 (Non-Reasoning): 34.4 (#46)

Agentic & Tool Use benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
Terminal-Bench—57.3%
τ²-bench Banking—18%
LMArena Search—1189
Vending-Bench 2—4,663

Reasoning Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 20.9 (#230), Grok 4.20 (Non-Reasoning): 52.3 (#32)

Reasoning benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Hard Prompts10921451
ARC-AGI-2—65.1%
Kagi LLM Benchmark—75%
NYT Connections (extended)—85.4%
ARC-AGI-1—89.5%
Chess Puzzles—24%
Thematic Generalization—63.8%
DTBench—90.1%
LMCA—38.7%
Epoch Capabilities Index—151.98
ForecastBench—61.4

Math Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 32.8 (#210), Grok 4.20 (Non-Reasoning): 48.2 (#65)

Math benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Math11431455
FrontierMath (Tiers 1-3)—44.9%
FrontierMath Tier 4—17.1%
OTIS Mock AIME 2024-2025—92.2%
ProofBench—14%

Knowledge Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 29.6 (#236), Grok 4.20 (Non-Reasoning): 52.8 (#60)

Knowledge benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Expert10871439
GPQA Diamond—89.3%
SimpleQA Verified—30.2%

Multimodal Not comparable

Granite 3.0 8b Instruct: —, Grok 4.20 (Non-Reasoning): 33.3 (#98)

Multimodal benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Vision—1263
Blueprint-Bench 2—0%
LMArena Document—1416

Multilingual Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 27.2 (#276), Grok 4.20 (Non-Reasoning): 54.5 (#40)

Multilingual benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Non-English10371441
LMArena Chinese10631481
LMArena Russian10601458
LMArena French—1476
LMArena German—1465
LMArena Japanese—1449
LMArena Korean—1417
LMArena Spanish—1443

Instruction Following Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 56.0 (#276), Grok 4.20 (Non-Reasoning): 74.8 (#83)

Instruction Following benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Instruction Following10881420

Long Context Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 34.0 (#252), Grok 4.20 (Non-Reasoning): 45.5 (#34)

Long Context benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Longer Query11221437
CL-bench—22.2%
CL-bench Life—11.9%

Writing & Preference Grok 4.20 (Non-Reasoning) leads

Granite 3.0 8b Instruct: 31.1 (#285), Grok 4.20 (Non-Reasoning): 65.7 (#44)

Writing & Preference benchmarks
BenchmarkGranite 3.0 8b InstructGrok 4.20 (Non-Reasoning)
LMArena Text10961451
LMArena Creative Writing10711438
LMArena Multi-Turn10631456
EQ-Bench Creative Writing—1574

Frequently asked questions

Is Granite 3.0 8b Instruct better than Grok 4.20 (Non-Reasoning)?

Grok 4.20 (Non-Reasoning) is the stronger model overall, scoring 48.6 to 31.6 on the Noometry Index.

Is Granite 3.0 8b Instruct or Grok 4.20 (Non-Reasoning) better for coding?

Grok 4.20 (Non-Reasoning) scores higher on coding benchmarks: 42.1 versus 29.7 in the Noometry coding category.

How many benchmarks do Granite 3.0 8b Instruct and Grok 4.20 (Non-Reasoning) share?

12 benchmarks have published results for both models. Granite 3.0 8b Instruct has 14 scored results on Noometry and Grok 4.20 (Non-Reasoning) has 46.

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