Claude Sonnet 5 vs Qwen3.5 397B A17B
API pricing, context window and capabilities for Claude Sonnet 5 and Qwen3.5 397B A17B, side by side. Prices are the cheapest serving route per 1M tokens, verified against LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Sonnet 5 wins on coding, on intelligence and on context window. Qwen3.5 397B A17B wins on price.
Price
Qwen3.5 397B A17B
Coding
Claude Sonnet 5
Intelligence
Claude Sonnet 5
Context window
Claude Sonnet 5
Key takeaways
who wins on what, from the published numbersClaude Sonnet 5 wins
- Larger context window (1M vs 262K)
- Higher max output (128K vs 66K)
- More serving providers (4 vs 3)
- Supports prompt caching
Qwen3.5 397B A17B wins
- Cheaper input ($2.00 vs $0.60 /1M)
- Cheaper output ($10.00 vs $3.60 /1M)
Cheaper overall
Qwen3.5 397B A17B
$0.60 + $3.60 /1M
Larger context
Claude Sonnet 5
1M
More providers
Claude Sonnet 5
4 providers
Pricing & specs
cheapest serving route · per 1M tokens| Claude Sonnet 5 | Qwen3.5 397B A17B | |
|---|---|---|
| Input $/1M | $2.00 | $0.60 best |
| Output $/1M | $10.00 | $3.60 best |
| Context window | 1M best | 262K |
| Max output | 128K best | 66K |
| Serving providers | 4 best | 3 |
| Released | 2026-06-30 | 2026-02-16 |
Benchmarks
Artificial Analysis indices, side by side| Claude Sonnet 5 | Qwen3.5 397B A17B | |
|---|---|---|
| Intelligence | 53.4 best | 33.7 |
| Coding | 71.5 best | 48.2 |
| GPQA Diamond | 91% best | 89% |
| Output speed | 67 t/s best | 61 t/s |
| Latency (TTFT) | 42.19s | 9.37s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Sonnet 5
via Amazon Bedrock
$20
Qwen3.5 397B A17B
via OpenRouter
$6.60
Capabilities
feature support, side by side| Feature | Claude Sonnet 5 | Qwen3.5 397B A17B |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | — |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude Sonnet 5 or Qwen3.5 397B A17B?
Qwen3.5 397B A17B is cheaper for input ($2.00 vs $0.60 per 1M tokens). Qwen3.5 397B A17B is cheaper for output ($10.00 vs $3.60 per 1M tokens).
What is the context window difference between Claude Sonnet 5 and Qwen3.5 397B A17B?
Claude Sonnet 5 has a 1M-token context window and Qwen3.5 397B A17B has 262K tokens, so Claude Sonnet 5 can take a larger prompt.
How do Claude Sonnet 5 and Qwen3.5 397B A17B compare on benchmarks?
On the tracked Artificial Analysis indices, Claude Sonnet 5 leads on coding, and Claude Sonnet 5 leads on intelligence.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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