token.app › Compare › Qwen3.5 Plus 2026-04-20 vs DeepSeek V4.1 Flash 1017

Qwen3.5 Plus 2026-04-20 vs DeepSeek V4.1 Flash 1017

DeepSeek V4.1 Flash 1017 is 2.6× 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 Plus 2026-04-20DeepSeek V4.1 Flash 1017
ProviderAlibabaDeepSeek
Input $/1M$0.300$0.150
Output $/1M$1.80$0.600
Blended $/1M$0.675$0.262
Context window1M1.0M
Max output66K393K
ReleasedApr 2026Oct 2026
LicenceProprietaryOpen weights
Choose Qwen3.5 Plus 2026-04-20 if…
  • No clear advantage on the data we hold.
Choose DeepSeek V4.1 Flash 1017 if…
  • Costs less per token — $0.262 vs $0.675 blended
  • Larger context window (1.0M)
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
FAQ
Which is better, Qwen3.5 Plus 2026-04-20 or DeepSeek V4.1 Flash 1017?
We do not hold independently-run benchmark scores covering both Qwen3.5 Plus 2026-04-20 and DeepSeek V4.1 Flash 1017, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Qwen3.5 Plus 2026-04-20 cheaper than DeepSeek V4.1 Flash 1017?
DeepSeek V4.1 Flash 1017 is cheaper: $0.262 versus $0.675 per million tokens blended at 3:1 input:output. Input alone: $0.300 vs $0.150. Output alone: $1.80 vs $0.600.
What context windows do Qwen3.5 Plus 2026-04-20 and DeepSeek V4.1 Flash 1017 have?
Qwen3.5 Plus 2026-04-20: 1,000,000 tokens. DeepSeek V4.1 Flash 1017: 1,048,576 tokens.
Who makes Qwen3.5 Plus 2026-04-20 and DeepSeek V4.1 Flash 1017?
Qwen3.5 Plus 2026-04-20 is made by Alibaba. DeepSeek V4.1 Flash 1017 is made by DeepSeek.
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