# Claude Fable 5 vs Phi 3 Mini 4k Instruct

> Claude Fable 5 is the stronger model overall, scoring 66.8 to 27.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-fable-5-vs-phi-3-mini-4k-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 18

## Summary

- They share 18 benchmarks with published results for both. Claude Fable 5 scores higher in 8 categories and Phi 3 Mini 4k Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Fable 5 leads 76.8 to 14.1.
- The biggest single-benchmark swing is Chess Puzzles: 41% for Claude Fable 5 and 0% for Phi 3 Mini 4k Instruct.
- Phi 3 Mini 4k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Noometry Index | 66.8 | 27.9 |
| Rank | 5 | 328 |
| Context | 1M | — |
| Input $/M | $10 | — |
| Output $/M | $50 | — |
| Weights | Proprietary | Open |

## Coding

- Claude Fable 5: 70.6 (#4)
- Phi 3 Mini 4k Instruct: 26.6 (#323)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Coding | 1519 | 1093 |
| DeepSWE | 69.9% | — |
| FrontierCode | 53.5% | — |
| LMArena WebDev | 1625 | — |
| FrontierSWE | 47% | — |
| SciCode | 61% | — |
| GSO | 78.4% | — |
| WeirdML | 91.9% | — |
| LiveBench Coding | — | 15.5% |
| MirrorCode | 63.9% | — |
| ALE-Bench | 2,041 | — |
| HumanEval+ | — | 59.1% |
| MBPP+ | — | 54.2% |

## Agentic & Tool Use

- Claude Fable 5: 54.0 (#2)
- Phi 3 Mini 4k Instruct: —

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| APEX-Agents | 63.6% | — |
| Remote Labor Index | 16.1% | — |
| τ²-bench Banking | 39.7% | — |
| PostTrainBench | 41.8% | — |
| GBAEval | 74.5% | — |
| GDP.pdf | 30% | — |
| LMArena Search | 1230 | — |
| Vending-Bench 2 | 5,680 | — |

## Reasoning

- Claude Fable 5: 76.8 (#6)
- Phi 3 Mini 4k Instruct: 14.1 (#328)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| Chess Puzzles | 41% | 0% |
| LMArena Hard Prompts | 1508 | 1072 |
| ARC-AGI-2 | 89.2% | — |
| SimpleBench | 81.9% | — |
| Kagi LLM Benchmark | 91.4% | — |
| NYT Connections (extended) | 92.7% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 28.6% | — |
| EnigmaEval | 39.3% | — |
| EBR-Bench | 39.5% | — |
| LiveBench Reasoning | — | 26.8% |
| Mystery Game Puzzles | 52% | — |
| DTBench | 98.4% | — |
| LiveBench Data Analysis | — | 34.7% |
| LMCA | 61.1% | — |
| Surface Evolver Bench | 95% | — |
| Adversarial NLI | — | 52.8% |
| Bench to the Future 3 | 0.13 | — |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | 162.06 | — |
| HellaSwag | — | 76.7% |
| LiveBench | — | 22.4% |
| WinoGrande | — | 70.8% |

## Math

- Claude Fable 5: 88.5 (#5)
- Phi 3 Mini 4k Instruct: 26.6 (#257)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Math | 1519 | 1111 |
| FrontierMath (Tiers 1-3) | 87% | — |
| FrontierMath Tier 4 | 90.2% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 95% | — |
| LiveBench Math | — | 15.7% |
| FrontierMath Erdős | 0% | — |

## Knowledge

- Claude Fable 5: 62.2 (#25)
- Phi 3 Mini 4k Instruct: 28.5 (#246)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Expert | 1534 | 1045 |
| GPQA Diamond | 85.9% | — |
| SimpleQA Verified | 70.7% | — |
| ARC (AI2) Challenge | — | 84.9% |
| MMLU | — | 68.8% |
| OpenBookQA | — | 88% |
| TriviaQA | — | 64% |

## Multimodal

- Claude Fable 5: 45.3 (#17)
- Phi 3 Mini 4k Instruct: —

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Vision | 1324 | — |
| Blueprint-Bench 2 | 38.6% | — |
| Furniture Assembly | 35.8% | — |
| LMArena Document | 1496 | — |

## Multilingual

- Claude Fable 5: 57.3 (#9)
- Phi 3 Mini 4k Instruct: 26.3 (#280)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Non-English | 1481 | 1021 |
| LMArena Chinese | 1543 | 1021 |
| LMArena French | 1505 | 1076 |
| LMArena German | 1486 | 1044 |
| LMArena Japanese | 1506 | 935 |
| LMArena Korean | 1488 | 905 |
| LMArena Russian | 1504 | 1022 |
| LMArena Spanish | 1498 | 1085 |

## Instruction Following

- Claude Fable 5: 78.6 (#8)
- Phi 3 Mini 4k Instruct: 47.7 (#303)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Instruction Following | 1502 | 1053 |
| LiveBench Instruction Following | — | 39.1% |

## Long Context

- Claude Fable 5: 46.3 (#23)
- Phi 3 Mini 4k Instruct: 31.7 (#276)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Longer Query | 1509 | 1044 |

## Writing & Preference

- Claude Fable 5: 75.9 (#5)
- Phi 3 Mini 4k Instruct: 27.6 (#300)

| Benchmark | Claude Fable 5 | Phi 3 Mini 4k Instruct |
|---|---|---|
| LMArena Text | 1491 | 1073 |
| LMArena Creative Writing | 1494 | 1037 |
| LMArena Multi-Turn | 1504 | 1018 |
| EQ-Bench Creative Writing | 1943 | — |
| EQ-Bench 4 | 1340 | — |
| LiveBench Language | — | 9.2% |

## FAQ

### Is Claude Fable 5 better than Phi 3 Mini 4k Instruct?

Claude Fable 5 is the stronger model overall, scoring 66.8 to 27.9 on the Noometry Index.

### Is Claude Fable 5 or Phi 3 Mini 4k Instruct better for coding?

Claude Fable 5 scores higher on coding benchmarks: 70.6 versus 26.6 in the Noometry coding category.

### How many benchmarks do Claude Fable 5 and Phi 3 Mini 4k Instruct share?

18 benchmarks have published results for both models. Claude Fable 5 has 62 scored results on Noometry and Phi 3 Mini 4k Instruct has 35.