Key Takeaways
Claude Sonnet 4.6 wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Has reasoning mode
Qwen3.5 397B A17B wins:
- Cheaper input tokens
- Cheaper output tokens
Price Advantage
Qwen3.5 397B A17B
Benchmark Advantage
Claude Sonnet 4.6
Context Window
Claude Sonnet 4.6
Speed
Claude Sonnet 4.6
Pricing Comparison
Price Comparison
| Metric | Claude Sonnet 4.6 | Qwen3.5 397B A17B | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $3.00 | $0.39 | Qwen3.5 397B A17B |
| Output (per 1M tokens) | $15.00 | $0.90 | Qwen3.5 397B A17B |
| Cache Read (per 1M) | $0.30 | $0.45 | Claude Sonnet 4.6 |
| Cache Write (per 1M) | $3.75 | N/A | Claude Sonnet 4.6 |
Using a 3:1 input/output ratio, Qwen3.5 397B A17B is 91% cheaper overall.
Claude Sonnet 4.6 Providers
No provider data available
Qwen3.5 397B A17B Providers
No provider data available
Benchmark Comparison
3
Benchmarks Compared
2
Claude Sonnet 4.6 Wins
1
Qwen3.5 397B A17B Wins
Benchmark Scores
| Benchmark | Claude Sonnet 4.6 | Qwen3.5 397B A17B | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 42.6 | 40.1 | |
Coding Index Code generation & understanding | 43.0 | 37.4 | |
GPQA Graduate-level science | 79.7 | 86.1 |
Claude Sonnet 4.6 significantly outperforms in coding benchmarks.
Cost vs Quality
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Y-axis:
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Other models
Context & Performance
Context Window
Claude Sonnet 4.6
1,000,000
tokens
Qwen3.5 397B A17B
262,144
tokens
Claude Sonnet 4.6 has a 74% larger context window.
Speed Performance
| Metric | Claude Sonnet 4.6 | Qwen3.5 397B A17B | Winner |
|---|---|---|---|
| Tokens/second | 56.7 tok/s | 55.5 tok/s | |
| Time to First Token | 1.07s | 1.55s |
Capabilities
Feature Comparison
| Feature | Claude Sonnet 4.6 | 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 | Claude Sonnet 4.6 | Qwen3.5 397B A17B |
|---|---|---|
| License | Proprietary | Open Source |
| Author | Anthropic | Qwen |
| Released | Feb 2026 | Feb 2026 |
Claude Sonnet 4.6 Modalities
Input
textimage
Output
text
Qwen3.5 397B A17B Modalities
Input
textimagevideo
Output
text