Model comparison
Qwen3-4B vs Qwen3 8B
Qwen3 8B is the stronger model overall, scoring 33.3 to 31.5 on the Noometry Index.
Last verified . 5 shared benchmarks.
Alibaba (Qwen)Summary
- They share 5 benchmarks with published results for both. Qwen3-4B scores higher in 1 category and Qwen3 8B in 3 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Qwen3 8B leads 33.3 to 28.5.
- The biggest single-benchmark swing is Berkeley Function Calling Leaderboard: 35.7% for Qwen3-4B and 42.6% for Qwen3 8B.
Side by side
| Qwen3-4B | Qwen3 8B | |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 31.5 | 33.3 |
| Released | 2025-04-29 | 2025-04 |
| Weights | Open | Open |
| Context window | — | 131K |
| Max output | — | 8K |
| Input $ / M tokens | — | $0.18 |
| Output $ / M tokens | — | $0.70 |
| Results tracked | 6 | 11 |
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Category by category
Coding Not comparable
Qwen3-4B: —, Qwen3 8B: 33.4 (#245)
| Benchmark | Qwen3-4B | Qwen3 8B |
|---|---|---|
| SciCode | — | 22.6% |
Agentic & Tool Use Qwen3 8B leads
Qwen3-4B: 27.3 (#94), Qwen3 8B: 29.9 (#71)
| Benchmark | Qwen3-4B | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | 35.7% | 42.6% |
Reasoning Qwen3-4B leads
Qwen3-4B: 18.5 (#264), Qwen3 8B: 16.1 (#299)
| Benchmark | Qwen3-4B | Qwen3 8B |
|---|---|---|
| Chess Puzzles | 4% | 5% |
| CritPt | — | 0% |
| DTBench | — | 59.7% |
| LMCA | — | 8.8% |
| Epoch Capabilities Index | — | 136.17 |
Math Qwen3 8B leads
Qwen3-4B: 28.5 (#228), Qwen3 8B: 33.3 (#176)
| Benchmark | Qwen3-4B | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 52.2% | 56.1% |
| MathArena Final-Answer Competitions | 38.5% | — |
Knowledge Qwen3 8B leads
Qwen3-4B: 33.0 (#198), Qwen3 8B: 36.1 (#164)
| Benchmark | Qwen3-4B | Qwen3 8B |
|---|---|---|
| GPQA Diamond | 52.3% | 56.8% |
| Vectara Hallucination Rate | 5.7% | 4.8% |
Long Context Not comparable
Qwen3-4B: —, Qwen3 8B: 37.8 (#205)
| Benchmark | Qwen3-4B | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
Frequently asked questions
Is Qwen3-4B better than Qwen3 8B?
Qwen3 8B is the stronger model overall, scoring 33.3 to 31.5 on the Noometry Index.
How many benchmarks do Qwen3-4B and Qwen3 8B share?
5 benchmarks have published results for both models. Qwen3-4B has 6 scored results on Noometry and Qwen3 8B has 11.