gpt-5.3-codex
SSE streaming debug, visual parameter configuration and request body testing.
Input: $1.75 / M TokensOutput: $14.00 / M Tokens
Show Debug
Custom JSON Mode
API Token
Sign in to select a token
Go to loginEnter to Send
Shift + Enter for new line
Temperature
0.7
Controls randomness and creativity in responses
Top P
1.0
Uses nucleus sampling to control token diversity
Frequency Penalty
0.0
Penalizes repeated words and phrases
Presence Penalty
0.0
Encourages introducing new topics
Max Tokens
Limits the maximum context length of model responses
Seed
Optional, fix the random seed to reproduce results
No conversations yet