DeepSeek V4 Pro 0423 vs Qwen3.5 397B A17B
API pricing, context window and capabilities for DeepSeek V4 Pro 0423 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 numbersDeepSeek V4 Pro 0423 wins on coding, on intelligence and on context window.
Price
Tied
Coding
DeepSeek V4 Pro 0423
Intelligence
DeepSeek V4 Pro 0423
Context window
DeepSeek V4 Pro 0423
Key takeaways
who wins on what, from the published numbersDeepSeek V4 Pro 0423 wins
- Cheaper output ($0.87 vs $2.34 /1M)
- Larger context window (1M vs 262K)
- Higher max output (512K vs 66K)
- More serving providers (10 vs 5)
Qwen3.5 397B A17B wins
- Cheaper input ($0.43 vs $0.39 /1M)
- Supports vision
Cheaper overall
DeepSeek V4 Pro 0423
$0.43 + $0.87 /1M
Larger context
DeepSeek V4 Pro 0423
1M
More providers
DeepSeek V4 Pro 0423
10 providers
Pricing & specs
cheapest serving route · per 1M tokens| DeepSeek V4 Pro 0423 | Qwen3.5 397B A17B | |
|---|---|---|
| Input $/1M | $0.43 | $0.39 best |
| Output $/1M | $0.87 best | $2.34 |
| Context window | 1M best | 262K |
| Max output | 512K best | 66K |
| Serving providers | 10 best | 5 |
| Released | 2026-04-24 | 2026-02-16 |
Benchmarks
Artificial Analysis indices, side by side| DeepSeek V4 Pro 0423 | Qwen3.5 397B A17B | |
|---|---|---|
| Intelligence | 53.2 best | 34.3 |
| Coding | 68.8 best | 48.2 |
| GPQA Diamond | 93% best | 89% |
| Output speed | 68 t/s | 90 t/s best |
| Latency (TTFT) | 1.75s best | 2.27s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
DeepSeek V4 Pro 0423
via Tencent
$3.04
Qwen3.5 397B A17B
via OpenRouter
$4.29
Capabilities
feature support, side by side| Feature | DeepSeek V4 Pro 0423 | Qwen3.5 397B A17B |
|---|---|---|
| Vision | — | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, DeepSeek V4 Pro 0423 or Qwen3.5 397B A17B?
Qwen3.5 397B A17B is cheaper for input ($0.43 vs $0.39 per 1M tokens). DeepSeek V4 Pro 0423 is cheaper for output ($0.87 vs $2.34 per 1M tokens).
What is the context window difference between DeepSeek V4 Pro 0423 and Qwen3.5 397B A17B?
DeepSeek V4 Pro 0423 has a 1M-token context window and Qwen3.5 397B A17B has 262K tokens, so DeepSeek V4 Pro 0423 can take a larger prompt.
How do DeepSeek V4 Pro 0423 and Qwen3.5 397B A17B compare on benchmarks?
On the tracked Artificial Analysis indices, DeepSeek V4 Pro 0423 leads on coding, and DeepSeek V4 Pro 0423 leads on intelligence.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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