Is DeepSeek V4 Pro or Qwen3.5 397B-A17B cheaper?

Qwen3.5 397B-A17B is cheaper on output tokens ($2.34 vs $3.48 per 1M).

Which has the larger context window, DeepSeek V4 Pro or Qwen3.5 397B-A17B?

DeepSeek V4 Pro has the larger context window (1M tokens).

DeepSeek V4 Pro vs Qwen3.5 397B-A17B

Qwen3.5 397B-A17B is cheaper on output tokens, while DeepSeek V4 Pro offers a larger context window. Choose DeepSeek V4 Pro or Qwen3.5 397B-A17B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Pro	Qwen3.5 397B-A17B
Provider	SiliconFlow	SiliconFlow
Input / 1M tokens	$1.74	$0.39
Output / 1M tokens	$3.48	$2.34
Context window	1M	262K
Parameters	1.6T	397B
Open weights	Yes	No
Released	Apr 2026	Feb 2026

DeepSeek V4 Pro details →Qwen3.5 397B-A17B details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.