Model comparison
phi-3-medium 14B vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 29.7 on the Noometry Index.
Last verified . 0 shared benchmarks.
Microsoft
StepFunSummary
- The widest gap is in knowledge, where Step 3.5 Flash leads 39.6 to 9.1.
Side by side
| phi-3-medium 14B | Step 3.5 Flash | |
|---|---|---|
| Provider | Microsoft | StepFun |
| Noometry Index | 29.7 | 42.3 |
| Released | 2024-04-23 | 2026-01-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 13 | 19 |
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Category by category
Coding Step 3.5 Flash leads
phi-3-medium 14B: 36.8 (#201), Step 3.5 Flash: 42.4 (#105)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| BigCodeBench Instruct | 37.6% | — |
| LMArena Coding | — | 1436 |
| BigCodeBench Complete | 48.7% | — |
Reasoning Not comparable
phi-3-medium 14B: —, Step 3.5 Flash: 22.2 (#202)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| NYT Connections (extended) | — | 28.4% |
| LMArena Hard Prompts | — | 1411 |
| Adversarial NLI | 55.8% | — |
| BIG-Bench Hard | 81.4% | — |
| Epoch Capabilities Index | 121.23 | — |
| HellaSwag | 82.4% | — |
| WinoGrande | 81.5% | — |
Math Step 3.5 Flash leads
phi-3-medium 14B: 27.3 (#250), Step 3.5 Flash: 42.6 (#84)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 66.8% |
| LMArena Math | — | 1408 |
| MATH Level 5 | 17.6% | — |
Knowledge Step 3.5 Flash leads
phi-3-medium 14B: 9.1 (#306), Step 3.5 Flash: 39.6 (#132)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| GPQA Diamond | 27.6% | — |
| LMArena Expert | — | 1421 |
| ARC (AI2) Challenge | 91.6% | — |
| MMLU | 78% | — |
| OpenBookQA | 87.4% | — |
| TriviaQA | 73.9% | — |
Multilingual Not comparable
phi-3-medium 14B: —, Step 3.5 Flash: 50.5 (#119)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | — | 1385 |
| LMArena Chinese | — | 1447 |
| LMArena French | — | 1421 |
| LMArena German | — | 1405 |
| LMArena Japanese | — | 1354 |
| LMArena Korean | — | 1352 |
| LMArena Russian | — | 1385 |
| LMArena Spanish | — | 1419 |
Instruction Following Not comparable
phi-3-medium 14B: —, Step 3.5 Flash: 73.1 (#124)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | — | 1385 |
Long Context Not comparable
phi-3-medium 14B: —, Step 3.5 Flash: 42.8 (#117)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | — | 1402 |
Writing & Preference Not comparable
phi-3-medium 14B: —, Step 3.5 Flash: 58.8 (#113)
| Benchmark | phi-3-medium 14B | Step 3.5 Flash |
|---|---|---|
| LMArena Text | — | 1403 |
| LMArena Creative Writing | — | 1357 |
| LMArena Multi-Turn | — | 1405 |
Frequently asked questions
Is phi-3-medium 14B better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 29.7 on the Noometry Index.
Is phi-3-medium 14B or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 36.8 in the Noometry coding category.
How many benchmarks do phi-3-medium 14B and Step 3.5 Flash share?
0 benchmarks have published results for both models. phi-3-medium 14B has 13 scored results on Noometry and Step 3.5 Flash has 19.