Try OpenCodeTry OpenCode

Compare AI models: GPT-5.5 vs GLM-5.3-Flash

  1. GPT-5.5OpenAI
  2. GLM-5.3-FlashZhipu
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
GPT-5.577/10094/1004/10098/10050/10089/100
GLM-5.3-Flash55/10035/10072/10080/10067/1000/100
Overview
Author
Context length
1.1M
1M
Reasoning
True
True
Input modalities
Text, Image, Pdf
Text, Image, Video, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$5.00/ 1M
$0.12/ 1M
Output
$30/ 1M
$0.42/ 1M
Cached input
$0.50/ 1M
$0.03/ 1M
MomentumLast 2 mo
Unique users
0
1.3M
Completed sessions
0
24,709,547
Token share
0%
3.06%
Tokens
00%
45T-21%
No trend data
SEP 21NOV 15
RetentionWeek 1
Returning users
Pending
62.7%68K user-weeks

Related comparisons. Other model pairs to check.