Key Takeaways
Qwen3 4B wins:
- Cheaper input tokens
- Cheaper output tokens
- Faster response time
Qwen3.5 397B A17B wins:
- Larger context window
- Higher intelligence benchmark
- Better at coding
- Supports vision
Price Advantage
Qwen3 4B
Benchmark Advantage
Qwen3.5 397B A17B
Context Window
Qwen3.5 397B A17B
Speed
Qwen3 4B
Pricing Comparison
Price Comparison
| Metric | Qwen3 4B | Qwen3.5 397B A17B | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $0.20 | $0.39 | Qwen3 4B |
| Output (per 1M tokens) | $0.20 | $0.90 | Qwen3 4B |
| Cache Read (per 1M) | $0.10 | $0.45 | Qwen3 4B |
Using a 3:1 input/output ratio, Qwen3 4B is 61% cheaper overall.
Qwen3 4B Providers
No provider data available
Qwen3.5 397B A17B Providers
No provider data available
Benchmark Comparison
6
Benchmarks Compared
0
Qwen3 4B Wins
2
Qwen3.5 397B A17B Wins
Benchmark Scores
| Benchmark | Qwen3 4B | Qwen3.5 397B A17B | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 12.5 | 40.1 | |
Coding Index Code generation & understanding | - | 37.4 | - |
MMLU Pro Academic knowledge | 58.6 | - | - |
GPQA Graduate-level science | 39.8 | 86.1 | |
LiveCodeBench Competitive programming | 23.3 | - | - |
AIME Competition math | 21.3 | - | - |
Qwen3.5 397B A17B significantly outperforms in coding benchmarks.
Cost vs Quality
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Qwen3 4B
Other models
Context & Performance
Context Window
Qwen3 4B
N/A
tokens
Qwen3.5 397B A17B
262,144
tokens
Speed Performance
| Metric | Qwen3 4B | Qwen3.5 397B A17B | Winner |
|---|---|---|---|
| Tokens/second | 104.8 tok/s | 52.2 tok/s | |
| Time to First Token | 0.95s | 1.66s |
Qwen3 4B responds 101% faster on average.
Capabilities
Feature Comparison
| Feature | Qwen3 4B | Qwen3.5 397B A17B |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Qwen3 4B | Qwen3.5 397B A17B |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Qwen | Qwen |
| Released | Unknown | Feb 2026 |
Qwen3 4B Modalities
Input
Output
Qwen3.5 397B A17B Modalities
Input
textimagevideo
Output
text