token.app › Compare › Qwen3.5 397B A17B vs DeepSeek V4.1 Flash 1017

Qwen3.5 397B A17B vs DeepSeek V4.1 Flash 1017

DeepSeek V4.1 Flash 1017 is 4.9× cheaper per token on a blended 3:1 basis. DeepSeek V4.1 Flash 1017 accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Qwen3.5 397B A17BDeepSeek V4.1 Flash 1017
ProviderAlibabaDeepSeek
Input $/1M$0.500$0.150
Output $/1M$3.60$0.600
Blended $/1M$1.27$0.262
Context window262K1.0M
Max output236K393K
ReleasedFeb 2026Oct 2026
LicenceOpen weightsOpen weights
Choose Qwen3.5 397B A17B if…
  • No clear advantage on the data we hold.
Choose DeepSeek V4.1 Flash 1017 if…
  • Costs less per token — $0.262 vs $1.27 blended
  • Larger context window (1.0M)
  • Newer model (released Oct 2026)
FAQ
Which is better, Qwen3.5 397B A17B or DeepSeek V4.1 Flash 1017?
We do not hold independently-run benchmark scores covering both Qwen3.5 397B A17B and DeepSeek V4.1 Flash 1017, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Qwen3.5 397B A17B cheaper than DeepSeek V4.1 Flash 1017?
DeepSeek V4.1 Flash 1017 is cheaper: $0.262 versus $1.27 per million tokens blended at 3:1 input:output. Input alone: $0.500 vs $0.150. Output alone: $3.60 vs $0.600.
What context windows do Qwen3.5 397B A17B and DeepSeek V4.1 Flash 1017 have?
Qwen3.5 397B A17B: 262,144 tokens. DeepSeek V4.1 Flash 1017: 1,048,576 tokens.
Who makes Qwen3.5 397B A17B and DeepSeek V4.1 Flash 1017?
Qwen3.5 397B A17B is made by Alibaba. DeepSeek V4.1 Flash 1017 is made by DeepSeek.
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