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GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly...
Input
$1.75
per 1M tokens
Output
$14.00
per 1M tokens
Blended
$4.81
per 1M tokens
Cheaper than 11% of models. Median price is $0.54/1M tokens.
Daily
$4.81
Monthly
$144.38
Context Window
128K
tokens
Larger than 17% of models
Max Output
16K
tokens
13% of context
Context Window Comparison
Price/1M
$4.81
578th cheapest
797% above median
Top 89%
Context Window
128K
311th largest
Top 83%