Compare AI models: DeepSeek V4.1 Flash vs LongCat-2.5-Preview

ReasoningCodingCost efficiencyContext windowMultimodalTool use

Normalized model capability scores
Model	Reasoning	Coding	Cost efficiency	Context window	Multimodal	Tool use
DeepSeek V4.1 Flash	100/100	100/100	77/100	81/100	33/100	92/100
LongCat-2.5-Preview	50/100 — Reasoning supported; no comparable benchmark	50/100 — No data; neutral placeholder	38/100	81/100	33/100	50/100 — Tool calling supported; no comparable benchmark

Overview

Author

Context length

Reasoning

True

Input modalities

Text, Image

Output modalities

Text

Providers

Pricing

Input

$0.07/ 1M

$0.75/ 1M

Output

$0.30/ 1M

$2.95/ 1M

Cached input

$0.0015/ 1M

$0.01/ 1M

MomentumLast 2 mo

Unique users

5.3M

291K

Completed sessions

142,369,682

15,849,760

Token share

47.7%

0.68%

Tokens

629T+20,697%

9T+100%

SEP 11NOV 5

RetentionWeek 1

Returning users

72.8%522K user-weeks

61%3.2K user-weeks

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