OpenAI: GPT-5.3 Codex
ChatGPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the fron...
Basic Info
Mode
Chat
Released
2026-02-25
Context Window
512K
Max Output
128K
Pricing
Input Price
$1.75/M
Output Price
$14/M
Cache Read
$0.18/M
Web Search
$0.01/R
Capabilities
Vision
Function Calling
Reasoning
Prompt Caching
Web Search
Web Fetch
Audio Input
Video Input
PDF Input
Protocols & Providers
Protocols
openai
Provider Count
1
Providers
Azure