# Gemini 3 Flash Preview vs Phi 3 Small 8k Instruct

> Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 29.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-3-flash-preview-vs-phi-3-small-8k-instruct
- Last updated: 2026-10-11
- Shared benchmarks: 17

## Summary

- They share 17 benchmarks with published results for both. Gemini 3 Flash Preview scores higher in 8 categories and Phi 3 Small 8k Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3 Flash Preview leads 49.2 to 14.8.
- Phi 3 Small 8k Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| Provider | Google | Microsoft |
| Noometry Index | 52.3 | 29.3 |
| Rank | 40 | 314 |
| Context | 1.05M | — |
| Input $/M | $0.50 | — |
| Output $/M | $3 | — |
| Weights | Proprietary | Open |

## Coding

- Gemini 3 Flash Preview: 50.9 (#42)
- Phi 3 Small 8k Instruct: 27.9 (#318)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Coding | 1460 | 1101 |
| SWE-bench Verified | 75.4% | — |
| SWE-bench Verified (bash only) | 75.8% | — |
| LMArena WebDev | 1439 | — |
| SWE-bench Multilingual | 72.7% | — |
| GSO | 9.8% | — |
| WeirdML | 61.6% | — |
| LiveBench Coding | — | 20.3% |
| ALE-Bench | 1,367 | — |

## Agentic & Tool Use

- Gemini 3 Flash Preview: 38.7 (#29)
- Phi 3 Small 8k Instruct: —

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| Terminal-Bench | 64.3% | — |
| τ²-bench Airline | 82.5% | — |
| τ²-bench Banking | 27.3% | — |
| τ²-bench Retail | 76.8% | — |
| τ²-bench Telecom | 91.2% | — |
| DeepResearch Bench | 49.8% | — |
| BALROG | 48.1% | — |
| GDP.pdf | 10% | — |
| LMArena Search | 1198 | — |
| Vending-Bench 2 | 3,635 | — |

## Reasoning

- Gemini 3 Flash Preview: 49.2 (#37)
- Phi 3 Small 8k Instruct: 14.8 (#323)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1465 | 1100 |
| ARC-AGI-2 | 33.6% | — |
| SimpleBench | 61.1% | — |
| NYT Connections (extended) | 83.1% | — |
| ARC-AGI-1 | 84.7% | — |
| Chess Puzzles | 40% | — |
| LiveBench Reasoning | — | 15.9% |
| Mystery Game Puzzles | 26% | — |
| DTBench | 89.1% | — |
| LiveBench Data Analysis | — | 30.3% |
| LMCA | 43.1% | — |
| Adversarial NLI | — | 58.1% |
| BIG-Bench Hard | — | 79.1% |
| Epoch Capabilities Index | 151.8 | — |
| ForecastBench | 58.5 | — |
| HellaSwag | — | 77% |
| LiveBench | — | 24% |
| WinoGrande | — | 81.5% |

## Math

- Gemini 3 Flash Preview: 51.7 (#55)
- Phi 3 Small 8k Instruct: 27.6 (#248)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Math | 1473 | 1151 |
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 17.1% | — |
| MathArena Final-Answer Competitions | 67.6% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 15% | — |
| LiveBench Math | — | 17.6% |
| FrontierMath (Feb 2025 set) | 35.6% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 3 Flash Preview: 58.8 (#33)
- Phi 3 Small 8k Instruct: 29.1 (#240)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Expert | 1462 | 1067 |
| GPQA Diamond | 89.4% | — |
| SimpleQA Verified | 66.8% | — |
| Vectara Hallucination Rate | 13.5% | — |
| ARC (AI2) Challenge | — | 90.7% |
| MMLU | — | 75.7% |
| OpenBookQA | — | 88% |
| TriviaQA | — | 58.1% |

## Multimodal

- Gemini 3 Flash Preview: 45.5 (#16)
- Phi 3 Small 8k Instruct: —

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Vision | 1285 | — |
| GeoBench | 88% | — |
| VPCT | 72.6% | — |
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1413 | — |

## Multilingual

- Gemini 3 Flash Preview: 55.7 (#27)
- Phi 3 Small 8k Instruct: 28.5 (#272)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Non-English | 1458 | 1058 |
| LMArena Chinese | 1511 | 1061 |
| LMArena French | 1477 | 1135 |
| LMArena German | 1497 | 1080 |
| LMArena Japanese | 1489 | 966 |
| LMArena Korean | 1443 | 894 |
| LMArena Russian | 1480 | 1111 |
| LMArena Spanish | 1469 | 1111 |

## Instruction Following

- Gemini 3 Flash Preview: 75.7 (#56)
- Phi 3 Small 8k Instruct: 51.9 (#292)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Instruction Following | 1437 | 1087 |
| LiveBench Instruction Following | — | 47.2% |

## Long Context

- Gemini 3 Flash Preview: 44.4 (#67)
- Phi 3 Small 8k Instruct: 33.0 (#267)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Longer Query | 1452 | 1088 |

## Writing & Preference

- Gemini 3 Flash Preview: 65.5 (#45)
- Phi 3 Small 8k Instruct: 31.1 (#284)

| Benchmark | Gemini 3 Flash Preview | Phi 3 Small 8k Instruct |
|---|---|---|
| LMArena Text | 1466 | 1110 |
| LMArena Creative Writing | 1457 | 1083 |
| LMArena Multi-Turn | 1471 | 1068 |
| LiveBench Language | — | 12.9% |

## FAQ

### Is Gemini 3 Flash Preview better than Phi 3 Small 8k Instruct?

Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 29.3 on the Noometry Index.

### Is Gemini 3 Flash Preview or Phi 3 Small 8k Instruct better for coding?

Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 27.9 in the Noometry coding category.

### How many benchmarks do Gemini 3 Flash Preview and Phi 3 Small 8k Instruct share?

17 benchmarks have published results for both models. Gemini 3 Flash Preview has 59 scored results on Noometry and Phi 3 Small 8k Instruct has 32.