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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 placeholder45/10081/10033/10050/100 — Tool calling supported; no comparable benchmark
DeepSeek V4.1 Flash100/100100/10072/10081/10033/10092/100
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
$0.14/ 1M
Output
$2.40/ 1M
$0.42/ 1M
Cached input
$0.04/ 1M
$0.0042/ 1M
MomentumLast 2 mo
Unique users
7.2K
2.7M
Completed sessions
19,310
58,954,451
Token share
0%
27.2%
Tokens
4.9B-80%
281T+100%
AUG 25OCT 19
AUG 25OCT 19
RetentionWeek 1
Returning users
Pending
68.5%317K user-weeks

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