Model comparison
Gemini 3.5 Flash vs Phi 3 Mini 128k Instruct
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 29.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
Google
MicrosoftSummary
- They share 17 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 8 categories and Phi 3 Mini 128k Instruct in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 19.6.
- Phi 3 Mini 128k Instruct has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.5 Flash | Phi 3 Mini 128k Instruct | |
|---|---|---|
| Provider | Microsoft | |
| Noometry Index | 54.2 | 29.7 |
| Released | 2026-05-19 | 2024-04-23 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $1.50 | — |
| Output $ / M tokens | $9 | — |
| Results tracked | 54 | 19 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Gemini 3.5 Flash leads
Gemini 3.5 Flash: 49.4 (#49), Phi 3 Mini 128k Instruct: 28.8 (#312)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Coding | 1492 | 1039 |
| SWE-bench Verified | 79.3% | — |
| DeepSWE | 37.4% | — |
| LMArena WebDev | 1499 | — |
| SciCode | 53.1% | — |
| WeirdML | 62.6% | — |
| BigCodeBench Instruct | — | 29.6% |
| BigCodeBench Complete | — | 40.6% |
| ALE-Bench | 911.02 | — |
Agentic & Tool Use Not comparable
Gemini 3.5 Flash: 24.7 (#114), Phi 3 Mini 128k Instruct: —
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| APEX-Agents | 27.5% | — |
| GBAEval | 6.7% | — |
| GDP.pdf | 14% | — |
| Vending-Bench 2 | 5,396 | — |
Reasoning Gemini 3.5 Flash leads
Gemini 3.5 Flash: 62.8 (#18), Phi 3 Mini 128k Instruct: 19.6 (#256)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Hard Prompts | 1488 | 1028 |
| ARC-AGI-2 | 72.1% | — |
| SimpleBench | 76.7% | — |
| NYT Connections (extended) | 92.6% | — |
| ARC-AGI-1 | 92.5% | — |
| CritPt | 13.1% | — |
| Chess Puzzles | 50% | — |
| EnigmaEval | 25.4% | — |
| EBR-Bench | 4.8% | — |
| Mystery Game Puzzles | 32% | — |
| DTBench | 94.7% | — |
| LMCA | 47.1% | — |
| Surface Evolver Bench | 58.1% | — |
| Epoch Capabilities Index | 154.46 | — |
| ForecastBench | 59 | — |
Math Gemini 3.5 Flash leads
Gemini 3.5 Flash: 60.7 (#36), Phi 3 Mini 128k Instruct: 31.6 (#222)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Math | 1504 | 1089 |
| FrontierMath (Tiers 1-3) | 62.8% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.3% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 31% | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge Gemini 3.5 Flash leads
Gemini 3.5 Flash: 66.3 (#11), Phi 3 Mini 128k Instruct: 26.8 (#254)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Expert | 1495 | 984 |
| GPQA Diamond | 92.8% | — |
| SimpleQA Verified | 66.2% | — |
Multimodal Not comparable
Gemini 3.5 Flash: 45.7 (#15), Phi 3 Mini 128k Instruct: —
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Vision | 1310 | — |
| Blueprint-Bench 2 | 33.6% | — |
| LMArena Document | 1463 | — |
Multilingual Gemini 3.5 Flash leads
Gemini 3.5 Flash: 57.0 (#13), Phi 3 Mini 128k Instruct: 25.2 (#285)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Non-English | 1476 | 1000 |
| LMArena Chinese | 1526 | 1016 |
| LMArena French | 1490 | 1039 |
| LMArena German | 1492 | 1006 |
| LMArena Japanese | 1486 | 899 |
| LMArena Korean | 1451 | 856 |
| LMArena Russian | 1493 | 1004 |
| LMArena Spanish | 1480 | 1059 |
Instruction Following Gemini 3.5 Flash leads
Gemini 3.5 Flash: 77.0 (#30), Phi 3 Mini 128k Instruct: 51.8 (#294)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Instruction Following | 1467 | 1023 |
Long Context Gemini 3.5 Flash leads
Gemini 3.5 Flash: 45.4 (#38), Phi 3 Mini 128k Instruct: 30.4 (#289)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Longer Query | 1482 | 996 |
Writing & Preference Gemini 3.5 Flash leads
Gemini 3.5 Flash: 65.5 (#47), Phi 3 Mini 128k Instruct: 27.1 (#301)
| Benchmark | Gemini 3.5 Flash | Phi 3 Mini 128k Instruct |
|---|---|---|
| LMArena Text | 1482 | 1050 |
| LMArena Creative Writing | 1470 | 1024 |
| LMArena Multi-Turn | 1481 | 989 |
| EQ-Bench 4 | 1087 | — |
Frequently asked questions
Is Gemini 3.5 Flash better than Phi 3 Mini 128k Instruct?
Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 29.7 on the Noometry Index.
Is Gemini 3.5 Flash or Phi 3 Mini 128k Instruct better for coding?
Gemini 3.5 Flash scores higher on coding benchmarks: 49.4 versus 28.8 in the Noometry coding category.
How many benchmarks do Gemini 3.5 Flash and Phi 3 Mini 128k Instruct share?
17 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Phi 3 Mini 128k Instruct has 19.