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Compare AI models: LongCat-2.5-Preview vs GPT-5.6 Luna

  1. LongCat-2.5-PreviewMeituanHollow points use fallbacks · hover for details
  2. GPT-5.6 LunaOpenAI
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
LongCat-2.5-Preview50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder38/10081/10033/10050/100 — Tool calling supported; no comparable benchmark
GPT-5.6 Luna69/10081/10058/10098/10050/10064/100
Overview
Author
Context length
1M
1.1M
Reasoning
True
True
Input modalities
Text, Image
Text, Image, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$0.75/ 1M
$0.20/ 1M
Output
$2.95/ 1M
$1.20/ 1M
Cached input
$0.01/ 1M
$0.02/ 1M
MomentumLast 2 mo
Unique users
291K
320K
Completed sessions
15,849,760
1,988,175
Token share
0.74%
0.21%
Tokens
9T+100%
2.5T-57%
SEP 3OCT 28
SEP 3OCT 28
RetentionWeek 1
Returning users
62.6%2.8K user-weeks
53.8%27K user-weeks

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