# Claude Sonnet 5.5 vs phi-3-medium 14B

> Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 29.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-5-vs-phi-3-medium-14b
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude Sonnet 5.5 scores higher in 3 categories and phi-3-medium 14B in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5.5 leads 88.7 to 25.2.
- The biggest single-benchmark swing is GPQA Diamond: 95.6% for Claude Sonnet 5.5 and 27.6% for phi-3-medium 14B.
- phi-3-medium 14B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Noometry Index | 60.5 | 29.1 |
| Rank | 10 | 306 |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 5.5: 65.5 (#6)
- phi-3-medium 14B: 36.3 (#198)

| Benchmark | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1699 | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| BigCodeBench Instruct | — | 37.6% |
| BigCodeBench Complete | — | 48.7% |
| ALE-Bench | 1,819 | — |

## Agentic & Tool Use

- Claude Sonnet 5.5: 44.9 (#14)
- phi-3-medium 14B: —

| Benchmark | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| APEX-Agents | 75.5% | — |

## Reasoning

- Claude Sonnet 5.5: 52.4 (#29)
- phi-3-medium 14B: —

| Benchmark | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| CritPt | 31.4% | — |
| Mystery Game Puzzles | 65% | — |
| Adversarial NLI | — | 55.8% |
| BIG-Bench Hard | — | 81.4% |
| Epoch Capabilities Index | — | 121.18 |
| HellaSwag | — | 82.4% |
| WinoGrande | — | 81.5% |

## Math

- Claude Sonnet 5.5: 88.7 (#4)
- phi-3-medium 14B: 25.2 (#249)

| Benchmark | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| MATH Level 5 | — | 17.6% |

## Knowledge

- Claude Sonnet 5.5: 66.0 (#11)
- phi-3-medium 14B: 9.1 (#301)

| Benchmark | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| GPQA Diamond | 95.6% | 27.6% |
| SimpleQA Verified | 46.5% | — |
| ARC (AI2) Challenge | — | 91.6% |
| MMLU | — | 78% |
| OpenBookQA | — | 87.4% |
| TriviaQA | — | 73.9% |

## Multimodal

- Claude Sonnet 5.5: 53.2 (#5)
- phi-3-medium 14B: —

| Benchmark | Claude Sonnet 5.5 | phi-3-medium 14B |
|---|---|---|
| Furniture Assembly | 75% | — |

## FAQ

### Is Claude Sonnet 5.5 better than phi-3-medium 14B?

Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 29.1 on the Noometry Index.

### Is Claude Sonnet 5.5 or phi-3-medium 14B better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 65.5 versus 36.3 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 5.5 and phi-3-medium 14B share?

1 benchmark has published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and phi-3-medium 14B has 13.