Claude Sonnet 4.6 vs Qwen 3.5 397B
Complete pricing and performance comparison between Anthropic's Claude Sonnet 4.6 and Alibaba's Qwen 3.5 397B.
Quick Verdict
Cheaper
Qwen 3.5 397B
5.0x cheaper input, 4.2x cheaper output
Larger Context
Claude Sonnet 4.6
200K vs 128K
Pricing Comparison
| Spec | Claude Sonnet 4.6 | Qwen 3.5 397B | Difference |
|---|---|---|---|
| Provider | Anthropic | Alibaba | |
| Input / 1M tokens | $3 | $0.6 | Qwen 3.5 397B is 80% more expensive |
| Output / 1M tokens | $15 | $3.6 | Qwen 3.5 397B is 76% more expensive |
| Context Window | 200K | 128K | 2x difference |
| Max Output | 64K | 33K |
Performance Benchmarks
| Metric | Claude Sonnet 4.6 | Qwen 3.5 397B | Winner |
|---|---|---|---|
| Quality Index | 44 | -- | N/A |
| Output Speed | 54 tok/s | -- | N/A |
| Value (Quality/$) | 14.8 | -- | Higher = better value |
Benchmark data from Artificial Analysis. Quality Index is a composite score across reasoning, coding, and knowledge tasks.
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | Claude Sonnet 4.6 | Qwen 3.5 397B | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0075 | $0.0017 | Qwen 3.5 397B saves $0.0058 |
10 requests 10K in / 3K out | $0.075 | $0.017 | Qwen 3.5 397B saves $0.058 |
100 requests 100K in / 30K out | $0.750 | $0.168 | Qwen 3.5 397B saves $0.582 |
1,000 requests 1M in / 300K out | $7.50 | $1.68 | Qwen 3.5 397B saves $5.82 |
10,000 requests 10M in / 3M out | $75.00 | $16.80 | Qwen 3.5 397B saves $58.20 |
1M requests/mo 1B in / 300M out | $7500.00 | $1680.00 | Qwen 3.5 397B saves $5820.00 |
Pros & Cons
Claude Sonnet 4.6 Strengths
- +Larger context window (200K vs 128K)
- +Higher max output tokens
Qwen 3.5 397B Strengths
- +Cheaper input tokens
- +Cheaper output tokens
When to Use Each Model
Choose Claude Sonnet 4.6 for
- →Long documents, large codebases, or multi-turn conversations
- →Generating long-form content or detailed code
Choose Qwen 3.5 397B for
- →Budget-conscious projects where cost is the primary factor
Frequently Asked Questions
Which is cheaper, Claude Sonnet 4.6 or Qwen 3.5 397B?
For input tokens, Qwen 3.5 397B is 5.0x cheaper at $0.6/1M tokens. For output tokens, Qwen 3.5 397B is 4.2x cheaper at $3.6/1M tokens. At typical usage (1M input + 300K output), Claude Sonnet 4.6 costs $7.50 vs Qwen 3.5 397B at $1.68.
What's the context window difference?
Claude Sonnet 4.6 supports 200K context (200,000 tokens), while Qwen 3.5 397B supports 128K (128,000 tokens). Claude Sonnet 4.6 can handle 2x more context in a single request.
Which model has better benchmarks?
When should I choose Claude Sonnet 4.6 over Qwen 3.5 397B?
Choose Claude Sonnet 4.6 when you need: Larger context window (200K vs 128K), Higher max output tokens. Choose Qwen 3.5 397B when you need: Cheaper input tokens, Cheaper output tokens.
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): Claude Sonnet 4.6 = $75.00, Qwen 3.5 397B = $16.80. At 10K input + 1K output per request (longer conversations): Claude Sonnet 4.6 = $450.00, Qwen 3.5 397B = $96.00.
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