token.app › Compare › Qwen3.5 Plus 2026-04-20 vs DeepSeek V4 Flash 0731

Qwen3.5 Plus 2026-04-20 vs DeepSeek V4 Flash 0731

DeepSeek V4 Flash 0731 is 1.0× cheaper per token on a blended 3:1 basis. DeepSeek V4 Flash 0731 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 Flash 0731
ProviderAlibabaDeepSeek
Input $/1M$0.300$0.440
Output $/1M$1.80$1.32
Blended $/1M$0.675$0.660
Context window1M1.0M
Max output66K131K
ReleasedApr 2026Jul 2026
LicenceProprietaryOpen weights
Choose Qwen3.5 Plus 2026-04-20 if…
  • No clear advantage on the data we hold.
Choose DeepSeek V4 Flash 0731 if…
  • Costs less per token — $0.660 vs $0.675 blended
  • Larger context window (1.0M)
  • Open weights — self-hostable
  • Newer model (released Jul 2026)
FAQ
Which is better, Qwen3.5 Plus 2026-04-20 or DeepSeek V4 Flash 0731?
We do not hold independently-run benchmark scores covering both Qwen3.5 Plus 2026-04-20 and DeepSeek V4 Flash 0731, 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 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.660 versus $0.675 per million tokens blended at 3:1 input:output. Input alone: $0.300 vs $0.440. Output alone: $1.80 vs $1.32.
What context windows do Qwen3.5 Plus 2026-04-20 and DeepSeek V4 Flash 0731 have?
Qwen3.5 Plus 2026-04-20: 1,000,000 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes Qwen3.5 Plus 2026-04-20 and DeepSeek V4 Flash 0731?
Qwen3.5 Plus 2026-04-20 is made by Alibaba. DeepSeek V4 Flash 0731 is made by DeepSeek.
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