Is DeepSeek V4 Flash or Qwen/Qwen3.5-397B-A17B cheaper?

DeepSeek V4 Flash is cheaper on output tokens ($0.28 vs $1.74 per 1M).

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

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

DeepSeek V4 Flash vs Qwen/Qwen3.5-397B-A17B

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

Spec	DeepSeek V4 Flash	Qwen/Qwen3.5-397B-A17B
Provider	SiliconFlow (China)	SiliconFlow (China)
Input / 1M tokens	$0.14	$0.29
Output / 1M tokens	$0.28	$1.74
Context window	1M	262K
Parameters	284B	397B
Open weights	Yes	Yes
Released	Apr 2026	Feb 2026

DeepSeek V4 Flash details →Qwen/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.