Model comparison
Qwen3-4B vs Step 2 16k Exp 202412
Step 2 16k Exp 202412 is the stronger model overall, scoring 38.6 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Alibaba (Qwen)
StepFunSummary
- The widest gap is in reasoning, where Step 2 16k Exp 202412 leads 24.8 to 18.5.
- Qwen3-4B has downloadable open weights; the other is API-only.
Side by side
| Qwen3-4B | Step 2 16k Exp 202412 | |
|---|---|---|
| Provider | Alibaba (Qwen) | StepFun |
| Noometry Index | 31.5 | 38.6 |
| Released | 2025-04-29 | — |
| Weights | Open | Proprietary |
| Context window | — | — |
| Max output | — | — |
| Input $ / M tokens | — | — |
| Output $ / M tokens | — | — |
| Results tracked | 6 | 12 |
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Category by category
Coding Not comparable
Qwen3-4B: —, Step 2 16k Exp 202412: 37.9 (#170)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Coding | — | 1316 |
Agentic & Tool Use Not comparable
Qwen3-4B: 27.3 (#94), Step 2 16k Exp 202412: —
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 35.7% | — |
Reasoning Step 2 16k Exp 202412 leads
Qwen3-4B: 18.5 (#264), Step 2 16k Exp 202412: 24.8 (#140)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| Chess Puzzles | 4% | — |
| LMArena Hard Prompts | — | 1299 |
Math Step 2 16k Exp 202412 leads
Qwen3-4B: 28.5 (#228), Step 2 16k Exp 202412: 33.6 (#171)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| MathArena Final-Answer Competitions | 38.5% | — |
| OTIS Mock AIME 2024-2025 | 52.2% | — |
| LMArena Math | — | 1305 |
Knowledge Step 2 16k Exp 202412 leads
Qwen3-4B: 33.0 (#198), Step 2 16k Exp 202412: 34.6 (#187)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| GPQA Diamond | 52.3% | — |
| Vectara Hallucination Rate | 5.7% | — |
| LMArena Expert | — | 1279 |
Multilingual Not comparable
Qwen3-4B: —, Step 2 16k Exp 202412: 43.9 (#176)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Non-English | — | 1290 |
| LMArena Chinese | — | 1331 |
| LMArena Russian | — | 1324 |
Instruction Following Not comparable
Qwen3-4B: —, Step 2 16k Exp 202412: 68.1 (#187)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Instruction Following | — | 1287 |
Long Context Not comparable
Qwen3-4B: —, Step 2 16k Exp 202412: 39.7 (#165)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Longer Query | — | 1307 |
Writing & Preference Not comparable
Qwen3-4B: —, Step 2 16k Exp 202412: 52.5 (#168)
| Benchmark | Qwen3-4B | Step 2 16k Exp 202412 |
|---|---|---|
| LMArena Text | — | 1321 |
| LMArena Creative Writing | — | 1328 |
| LMArena Multi-Turn | — | 1292 |
Frequently asked questions
Is Qwen3-4B better than Step 2 16k Exp 202412?
Step 2 16k Exp 202412 is the stronger model overall, scoring 38.6 to 31.5 on the Noometry Index.
How many benchmarks do Qwen3-4B and Step 2 16k Exp 202412 share?
0 benchmarks have published results for both models. Qwen3-4B has 6 scored results on Noometry and Step 2 16k Exp 202412 has 12.