Model comparison
Phi-4 vs Step 2 16k Exp 202412
Step 2 16k Exp 202412 is the stronger model overall, scoring 39.2 to 31.2 on the Noometry Index.
Last verified . 12 shared benchmarks.
Microsoft
StepFunSummary
- They share 12 benchmarks with published results for both. Phi-4 scores higher in 0 categories and Step 2 16k Exp 202412 in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 2 16k Exp 202412 leads 36.3 to 20.8.
- Phi-4 has downloadable open weights; the other is API-only.
Side by side
| Phi-4 | Step 2 16k Exp 202412 | |
|---|---|---|
| Provider | Microsoft | StepFun |
| Noometry Index | 31.2 | 39.2 |
| Released | 2024-12-11 | — |
| Weights | Open | Proprietary |
| Context window | 128K | — |
| Max output | 4K | — |
| Input $ / M tokens | $0.07 | — |
| Output $ / M tokens | $0.14 | — |
| Results tracked | 37 | 12 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Step 2 16k Exp 202412 leads
Phi-4: 34.4 (#239), Step 2 16k Exp 202412: 38.5 (#174)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Coding | 1231 | 1316 |
| BigCodeBench Instruct | 45.5% | — |
| LiveBench Coding | 30.7% | — |
| BigCodeBench Complete | 55.4% | — |
Agentic & Tool Use Not comparable
Phi-4: 22.8 (#128), Step 2 16k Exp 202412: —
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 28.8% | — |
| BALROG | 11.6% | — |
Reasoning Step 2 16k Exp 202412 leads
Phi-4: 17.7 (#291), Step 2 16k Exp 202412: 25.9 (#142)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Hard Prompts | 1220 | 1299 |
| Chess Puzzles | 1% | — |
| LiveBench Reasoning | 47.8% | — |
| LiveBench Data Analysis | 45.2% | — |
| Epoch Capabilities Index | 130.42 | — |
| LiveBench | 41.6% | — |
Math Step 2 16k Exp 202412 leads
Phi-4: 20.8 (#285), Step 2 16k Exp 202412: 36.3 (#169)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Math | 1246 | 1304 |
| OTIS Mock AIME 2024-2025 | 13.8% | — |
| LiveBench Math | 42% | — |
| MATH Level 5 | 64.9% | — |
Knowledge Step 2 16k Exp 202412 leads
Phi-4: 32.6 (#209), Step 2 16k Exp 202412: 35.2 (#187)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Expert | 1203 | 1279 |
| GPQA Diamond | 56.1% | — |
| Confabulations | 29.4% | — |
| Vectara Hallucination Rate | 3.7% | — |
| MMLU | 84.8% | — |
Multilingual Step 2 16k Exp 202412 leads
Phi-4: 37.2 (#237), Step 2 16k Exp 202412: 43.7 (#181)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Non-English | 1197 | 1290 |
| LMArena Chinese | 1212 | 1331 |
| LMArena Russian | 1209 | 1324 |
| LMArena French | 1224 | — |
| LMArena German | 1222 | — |
| LMArena Japanese | 1158 | — |
| LMArena Korean | 1151 | — |
| LMArena Spanish | 1234 | — |
Instruction Following Step 2 16k Exp 202412 leads
Phi-4: 60.4 (#251), Step 2 16k Exp 202412: 67.9 (#192)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Instruction Following | 1201 | 1287 |
| LiveBench Instruction Following | 58.4% | — |
Long Context Step 2 16k Exp 202412 leads
Phi-4: 36.9 (#226), Step 2 16k Exp 202412: 39.7 (#170)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Longer Query | 1217 | 1307 |
Writing & Preference Step 2 16k Exp 202412 leads
Phi-4: 40.5 (#244), Step 2 16k Exp 202412: 52.3 (#173)
| Benchmark | Phi-4 | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Text | 1217 | 1321 |
| LMArena Creative Writing | 1182 | 1328 |
| LMArena Multi-Turn | 1206 | 1292 |
| Short-Story Creative Writing | 62.6% | — |
| LiveBench Language | 25.6% | — |
Frequently asked questions
Is Phi-4 better than Step 2 16k Exp 202412?
Step 2 16k Exp 202412 is the stronger model overall, scoring 39.2 to 31.2 on the Noometry Index.
Is Phi-4 or Step 2 16k Exp 202412 better for coding?
Step 2 16k Exp 202412 scores higher on coding benchmarks: 38.5 versus 34.4 in the Noometry coding category.
How many benchmarks do Phi-4 and Step 2 16k Exp 202412 share?
12 benchmarks have published results for both models. Phi-4 has 37 scored results on Noometry and Step 2 16k Exp 202412 has 12.