Model comparison

GPT-6 Sol vs Granite 3.1 8b Instruct

GPT-6 Sol is the stronger model overall, scoring 61.8 to 32.4 on the Noometry Index.

Last verified . 12 shared benchmarks.

GPT-6 Sol OpenAI

61.8

Rank #12 Confirmed

Granite 3.1 8b Instruct IBM

32.4

Rank #258 Confirmed

Summary

  • They share 12 benchmarks with published results for both. GPT-6 Sol scores higher in 9 categories and Granite 3.1 8b Instruct in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6 Sol leads 87.2 to 33.0.
  • Granite 3.1 8b Instruct has downloadable open weights; the other is API-only.

Side by side

GPT-6 Sol and Granite 3.1 8b Instruct specifications
GPT-6 SolGranite 3.1 8b Instruct
ProviderOpenAIIBM
Noometry Index61.832.4
Released2026-09-22—
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked4513

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Category by category

Coding GPT-6 Sol leads

GPT-6 Sol: 60.1 (#11), Granite 3.1 8b Instruct: 34.5 (#233)

Coding benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Coding14471186
DeepSWE68.8%—
FrontierCode49.3%—
LMArena WebDev1688—
SciCode57.6%—
ALE-Bench2,462—

Agentic & Tool Use GPT-6 Sol leads

GPT-6 Sol: 37.2 (#36), Granite 3.1 8b Instruct: 24.1 (#120)

Agentic & Tool Use benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
APEX-Agents54.3%—
Berkeley Function Calling Leaderboard—27.1%
GDP.pdf26.4%—
Vending-Bench 214,428—

Reasoning GPT-6 Sol leads

GPT-6 Sol: 74.0 (#9), Granite 3.1 8b Instruct: 22.1 (#207)

Reasoning benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Hard Prompts14181145
ARC-AGI-289.6%—
NYT Connections (extended)90.1%—
ARC-AGI-195.5%—
CritPt30.9%—
EBR-Bench53.3%—
Mystery Game Puzzles56%—
DTBench97.3%—
LMCA59.1%—
Epoch Capabilities Index162.72—

Math GPT-6 Sol leads

GPT-6 Sol: 87.2 (#7), Granite 3.1 8b Instruct: 33.0 (#209)

Math benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Math14021152
FrontierMath (Tiers 1-3)89.8%—
FrontierMath Tier 490%—
OTIS Mock AIME 2024-2025100%—
ProofBench83%—

Knowledge GPT-6 Sol leads

GPT-6 Sol: 64.8 (#15), Granite 3.1 8b Instruct: 31.1 (#220)

Knowledge benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Expert14391142
GPQA Diamond94.3%—
SimpleQA Verified60.7%—
Vectara Hallucination Rate6.5%—

Multimodal Not comparable

GPT-6 Sol: 47.6 (#10), Granite 3.1 8b Instruct: —

Multimodal benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Vision1245—
Blueprint-Bench 236.9%—
Furniture Assembly58.3%—

Multilingual GPT-6 Sol leads

GPT-6 Sol: 50.5 (#118), Granite 3.1 8b Instruct: 30.9 (#260)

Multilingual benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Non-English13851099
LMArena Chinese14051145
LMArena Russian14011092
LMArena French1410—
LMArena German1390—
LMArena Japanese1385—
LMArena Korean1341—
LMArena Spanish1384—

Instruction Following GPT-6 Sol leads

GPT-6 Sol: 74.5 (#94), Granite 3.1 8b Instruct: 58.6 (#259)

Instruction Following benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Instruction Following14121131

Long Context GPT-6 Sol leads

GPT-6 Sol: 43.1 (#108), Granite 3.1 8b Instruct: 35.2 (#241)

Long Context benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Longer Query14111162

Writing & Preference GPT-6 Sol leads

GPT-6 Sol: 71.9 (#18), Granite 3.1 8b Instruct: 35.5 (#266)

Writing & Preference benchmarks
BenchmarkGPT-6 SolGranite 3.1 8b Instruct
LMArena Text13951150
LMArena Creative Writing13781129
LMArena Multi-Turn14121108
EQ-Bench Creative Writing2125—

Frequently asked questions

Is GPT-6 Sol better than Granite 3.1 8b Instruct?

GPT-6 Sol is the stronger model overall, scoring 61.8 to 32.4 on the Noometry Index.

Is GPT-6 Sol or Granite 3.1 8b Instruct better for coding?

GPT-6 Sol scores higher on coding benchmarks: 60.1 versus 34.5 in the Noometry coding category.

How many benchmarks do GPT-6 Sol and Granite 3.1 8b Instruct share?

12 benchmarks have published results for both models. GPT-6 Sol has 45 scored results on Noometry and Granite 3.1 8b Instruct has 13.

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