Model comparison
Claude Sonnet 5.5 vs Granite 4.1 30B
Claude Sonnet 5.5 has enough public results to be ranked (#10); Granite 4.1 30B does not yet, so treat this comparison as directional.
Last verified . 2 shared benchmarks.
Summary
- They share 2 benchmarks with published results for both. Claude Sonnet 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 coding, where Claude Sonnet 5.5 leads 67.3 to 35.2.
- The biggest single-benchmark swing is SciCode: 61% for Claude Sonnet 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 Sonnet 5.5 | Granite 4.1 30B | |
|---|---|---|
| Provider | Anthropic | IBM |
| Noometry Index | 61.9 | 34.0 |
| Released | 2026-09-28 | 2026-04-29 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $2 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 32 | 2 |
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Category by category
Coding Claude Sonnet 5.5 leads
Claude Sonnet 5.5: 67.3 (#6), Granite 4.1 30B: 35.2
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| SciCode | 61% | 25.8% |
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1774 | — |
| FrontierSWE | 61.9% | — |
| LMArena Coding | 1513 | — |
| ALE-Bench | 1,819 | — |
Agentic & Tool Use Not comparable
Claude Sonnet 5.5: 45.0 (#16), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| APEX-Agents | 75.5% | — |
Reasoning Claude Sonnet 5.5 leads
Claude Sonnet 5.5: 54.0 (#28), Granite 4.1 30B: 22.4
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| CritPt | 31.4% | 0% |
| NYT Connections (extended) | 80.5% | — |
| LMArena Hard Prompts | 1495 | — |
| Mystery Game Puzzles | 65% | — |
| Epoch Capabilities Index | 165.03 | — |
Math Not comparable
Claude Sonnet 5.5: 87.9 (#6), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| LMArena Math | 1510 | — |
| FrontierMath Erdős | 2.9% | — |
Knowledge Not comparable
Claude Sonnet 5.5: 66.0 (#12), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| GPQA Diamond | 95.6% | — |
| SimpleQA Verified | 46.5% | — |
| LMArena Expert | 1540 | — |
Multimodal Not comparable
Claude Sonnet 5.5: 51.5 (#6), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| LMArena Vision | 1289 | — |
| Furniture Assembly | 75% | — |
Multilingual Not comparable
Claude Sonnet 5.5: 55.3 (#30), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| LMArena Non-English | 1452 | — |
| LMArena Chinese | 1522 | — |
| LMArena Russian | 1451 | — |
Instruction Following Not comparable
Claude Sonnet 5.5: 78.3 (#11), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| LMArena Instruction Following | 1495 | — |
Long Context Not comparable
Claude Sonnet 5.5: 45.9 (#28), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| LMArena Longer Query | 1498 | — |
Writing & Preference Not comparable
Claude Sonnet 5.5: 66.0 (#40), Granite 4.1 30B: —
| Benchmark | Claude Sonnet 5.5 | Granite 4.1 30B |
|---|---|---|
| LMArena Text | 1471 | — |
| LMArena Creative Writing | 1465 | — |
| LMArena Multi-Turn | 1474 | — |
Frequently asked questions
Is Claude Sonnet 5.5 better than Granite 4.1 30B?
Claude Sonnet 5.5 has enough public results to be ranked (#10); Granite 4.1 30B does not yet, so treat this comparison as directional.
Is Claude Sonnet 5.5 or Granite 4.1 30B better for coding?
Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 35.2 in the Noometry coding category.
How many benchmarks do Claude Sonnet 5.5 and Granite 4.1 30B share?
2 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Granite 4.1 30B has 2.