Model comparison

Claude Opus 5.5 vs Granite 4.1 30B

Claude Opus 5.5 has enough public results to be ranked (#3); Granite 4.1 30B does not yet, so treat this comparison as directional.

Last verified . 2 shared benchmarks.

Claude Opus 5.5 Anthropic

68.6

Rank #3 Confirmed

Granite 4.1 30B IBM

34.0

Unranked Sparse

Summary

  • They share 2 benchmarks with published results for both. Claude Opus 5.5 scores higher in 2 categories and Granite 4.1 30B in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Opus 5.5 leads 80.2 to 22.4.
  • The biggest single-benchmark swing is SciCode: 66.9% for Claude Opus 5.5 and 25.8% for Granite 4.1 30B.
  • Granite 4.1 30B has downloadable open weights; the other is API-only.

Side by side

Claude Opus 5.5 and Granite 4.1 30B specifications
Claude Opus 5.5Granite 4.1 30B
ProviderAnthropicIBM
Noometry Index68.634.0
Released2026-09-222026-04-29
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$4—
Output $ / M tokens$20—
Results tracked442

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.9 (#3), Granite 4.1 30B: 35.2

Coding benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
SciCode66.9%25.8%
FrontierCode54.6%—
CursorBench57.8%—
LMArena WebDev1813—
FrontierSWE62.3%—
LMArena Coding1547—
MirrorCode77.4%—
ALE-Bench2,147—

Agentic & Tool Use Not comparable

Claude Opus 5.5: 45.3 (#15), Granite 4.1 30B: —

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
APEX-Agents73.5%—
GDP.pdf30.6%—
Vending-Bench 29,235—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 80.2 (#3), Granite 4.1 30B: 22.4

Reasoning benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
CritPt31.7%0%
ARC-AGI-293.3%—
NYT Connections (extended)88.5%—
ARC-AGI-198.5%—
EBR-Bench71.4%—
LMArena Hard Prompts1535—
Mystery Game Puzzles71%—
DTBench98.9%—
LMCA68.2%—
Epoch Capabilities Index167.33—

Math Not comparable

Claude Opus 5.5: 91.8 (#3), Granite 4.1 30B: —

Math benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
FrontierMath (Tiers 1-3)91.2%—
FrontierMath Tier 495%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
LMArena Math1506—
FrontierMath Erdős2.9%—

Knowledge Not comparable

Claude Opus 5.5: 66.4 (#10), Granite 4.1 30B: —

Knowledge benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
GPQA Diamond90.6%—
SimpleQA Verified72.2%—
LMArena Expert1547—

Multimodal Not comparable

Claude Opus 5.5: 57.8 (#1), Granite 4.1 30B: —

Multimodal benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
LMArena Vision1321—
Blueprint-Bench 251.2%—
Furniture Assembly83.3%—

Multilingual Not comparable

Claude Opus 5.5: 59.1 (#2), Granite 4.1 30B: —

Multilingual benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
LMArena Non-English1507—
LMArena Chinese1588—
LMArena French1514—
LMArena Russian1520—
LMArena Spanish1507—

Instruction Following Not comparable

Claude Opus 5.5: 80.0 (#3), Granite 4.1 30B: —

Instruction Following benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
LMArena Instruction Following1537—

Long Context Not comparable

Claude Opus 5.5: 47.1 (#19), Granite 4.1 30B: —

Long Context benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
LMArena Longer Query1532—

Writing & Preference Not comparable

Claude Opus 5.5: 78.2 (#3), Granite 4.1 30B: —

Writing & Preference benchmarks
BenchmarkClaude Opus 5.5Granite 4.1 30B
LMArena Text1515—
LMArena Creative Writing1533—
EQ-Bench Creative Writing2050—
LMArena Multi-Turn1499—

Frequently asked questions

Is Claude Opus 5.5 better than Granite 4.1 30B?

Claude Opus 5.5 has enough public results to be ranked (#3); Granite 4.1 30B does not yet, so treat this comparison as directional.

Is Claude Opus 5.5 or Granite 4.1 30B better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 35.2 in the Noometry coding category.

How many benchmarks do Claude Opus 5.5 and Granite 4.1 30B share?

2 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and Granite 4.1 30B has 2.

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