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Compare AI models: Qwen3.5 Plus vs DeepSeek V4.1 Flash

  1. Qwen3.5 PlusAlibabaHollow points use fallbacks · hover for details
  2. DeepSeek V4.1 FlashDeepSeek
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
Qwen3.5 Plus50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder46/10082/10033/10050/100 — Tool calling supported; no comparable benchmark
DeepSeek V4.1 Flash100/100100/10059/10082/10033/10092/100
Overview
Author
Context length
1M
1M
Reasoning
True
True
Input modalities
Text, Image, Video
Text, Image
Output modalities
Text
Text
Providers
Pricing
Input
$0.40/ 1M
$0.30/ 1M
Output
$2.40/ 1M
$1.20/ 1M
Cached input
$0.04/ 1M
$0.006/ 1M
MomentumLast 2 mo
Unique users
11K
2.1M
Completed sessions
19,872
39,817,259
Token share
0%
21.9%
Tokens
8.4B-63%
215T+100%
AUG 20OCT 14
AUG 20OCT 14
RetentionWeek 1
Returning users
71.9%139 user-weeks
64.2%249K user-weeks

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