Model comparison
Gemini 3.8 Flash vs Phi-3.5-MoE
Gemini 3.8 Flash has enough public results to be ranked (#13); Phi-3.5-MoE does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
Google
MicrosoftSummary
- Phi-3.5-MoE has downloadable open weights; the other is API-only.
Side by side
| Gemini 3.8 Flash | Phi-3.5-MoE | |
|---|---|---|
| Provider | Microsoft | |
| Noometry Index | 59.5 | — |
| Released | 2026-09-02 | 2024-08-17 |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.75 | — |
| Output $ / M tokens | $3.75 | — |
| Results tracked | 46 | 3 |
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Category by category
Coding Not comparable
Gemini 3.8 Flash: 56.4 (#17), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| DeepSWE | 73.8% | — |
| FrontierCode | 41.2% | — |
| CursorBench | 39.6% | — |
| LMArena WebDev | 1581 | — |
| FrontierSWE | 19.6% | — |
| SciCode | 56.6% | — |
| LMArena Coding | 1512 | — |
| ALE-Bench | 1,270 | — |
Agentic & Tool Use Not comparable
Gemini 3.8 Flash: 40.3 (#22), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| APEX-Agents | 64.3% | — |
| GDP.pdf | 23.4% | — |
| Vending-Bench 2 | 5,094 | — |
Reasoning Not comparable
Gemini 3.8 Flash: 64.7 (#13), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| NYT Connections (extended) | 97.4% | — |
| CritPt | 18.3% | — |
| Chess Puzzles | 61% | — |
| LMArena Hard Prompts | 1506 | — |
| Mystery Game Puzzles | 47% | — |
| DTBench | 95.7% | — |
| LMCA | 52.9% | — |
| Surface Evolver Bench | 76.9% | — |
| Epoch Capabilities Index | 157.13 | — |
| PIQA | — | 88.6% |
Math Not comparable
Gemini 3.8 Flash: 65.2 (#22), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| FrontierMath (Tiers 1-3) | 68.4% | — |
| FrontierMath Tier 4 | 22% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| ProofBench | 48% | — |
| LMArena Math | 1528 | — |
| GSM8K | — | 88.7% |
Knowledge Not comparable
Gemini 3.8 Flash: 74.9 (#2), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| GPQA Diamond | 95.4% | — |
| Humanity's Last Exam | 44.5% | — |
| SimpleQA Verified | 69.7% | — |
| LMArena Expert | 1529 | — |
| BoolQ | — | 84.6% |
Multimodal Not comparable
Gemini 3.8 Flash: 40.9 (#33), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| LMArena Vision | 1312 | — |
| Blueprint-Bench 2 | 38.6% | — |
| Furniture Assembly | 31.7% | — |
Multilingual Not comparable
Gemini 3.8 Flash: 57.9 (#5), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| LMArena Non-English | 1486 | — |
| LMArena Chinese | 1547 | — |
| LMArena French | 1502 | — |
| LMArena German | 1470 | — |
| LMArena Japanese | 1505 | — |
| LMArena Korean | 1479 | — |
| LMArena Russian | 1507 | — |
| LMArena Spanish | 1492 | — |
Instruction Following Not comparable
Gemini 3.8 Flash: 78.2 (#11), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| LMArena Instruction Following | 1489 | — |
Long Context Not comparable
Gemini 3.8 Flash: 46.2 (#23), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| LMArena Longer Query | 1506 | — |
Writing & Preference Not comparable
Gemini 3.8 Flash: 72.1 (#16), Phi-3.5-MoE: —
| Benchmark | Gemini 3.8 Flash | Phi-3.5-MoE |
|---|---|---|
| LMArena Text | 1494 | — |
| LMArena Creative Writing | 1485 | — |
| EQ-Bench Creative Writing | 1748 | — |
| LMArena Multi-Turn | 1503 | — |
Frequently asked questions
Is Gemini 3.8 Flash better than Phi-3.5-MoE?
Gemini 3.8 Flash has enough public results to be ranked (#13); Phi-3.5-MoE does not yet, so treat this comparison as directional.
How many benchmarks do Gemini 3.8 Flash and Phi-3.5-MoE share?
0 benchmarks have published results for both models. Gemini 3.8 Flash has 46 scored results on Noometry and Phi-3.5-MoE has 3.